CVE-2019-15903
Publication date 4 September 2019
Last updated 11 July 2025
Ubuntu priority
Cvss 3 Severity Score
Description
In libexpat before 2.2.8, crafted XML input could fool the parser into changing from DTD parsing to document parsing too early; a consecutive call to XML_GetCurrentLineNumber (or XML_GetCurrentColumnNumber) then resulted in a heap-based buffer over-read.
Status
| Package | Ubuntu Release | Status | 
|---|---|---|
| insighttoolkit4 | 25.10 questing | Not in release | 
| 25.04 plucky | Not in release | |
| 24.04 LTS noble | Not in release | |
| 22.04 LTS jammy | 
                                Not affected 
                                
                               | |
| 20.04 LTS focal | 
                                Not affected 
                                
                               | |
| 18.04 LTS bionic | 
                                Not affected 
                                
                               | |
| 16.04 LTS xenial | 
                                Needs evaluation 
                                
                               | |
| 14.04 LTS trusty | Not in release | |
| cadaver | 25.10 questing | 
                                Needs evaluation 
                                
                               | 
| 25.04 plucky | 
                                Needs evaluation 
                                
                               | |
| 24.04 LTS noble | 
                                Needs evaluation 
                                
                               | |
| 22.04 LTS jammy | 
                                Needs evaluation 
                                
                               | |
| 20.04 LTS focal | 
                                Needs evaluation 
                                
                               | |
| 18.04 LTS bionic | 
                                Needs evaluation 
                                
                               | |
| 16.04 LTS xenial | 
                                Needs evaluation 
                                
                               | |
| 14.04 LTS trusty | Not in release | |
| insighttoolkit | 25.10 questing | Not in release | 
| 25.04 plucky | Not in release | |
| 24.04 LTS noble | Not in release | |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | Not in release | |
| 16.04 LTS xenial | 
                                Needs evaluation 
                                
                               | |
| 14.04 LTS trusty | Not in release | |
| audacity | 25.10 questing | 
                                Not affected 
                                
                               | 
| 25.04 plucky | 
                                Not affected 
                                
                               | |
| 24.04 LTS noble | 
                                Not affected 
                                
                               | |
| 22.04 LTS jammy | 
                                Not affected 
                                
                               | |
| 20.04 LTS focal | 
                                Not affected 
                                
                               | |
| 18.04 LTS bionic | 
                                Not affected 
                                
                               | |
| 16.04 LTS xenial | 
                                Not affected 
                                
                               | |
| 14.04 LTS trusty | Not in release | |
| ayttm | 25.10 questing | Not in release | 
| 25.04 plucky | Not in release | |
| 24.04 LTS noble | Not in release | |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | Not in release | |
| 16.04 LTS xenial | 
                                Needs evaluation 
                                
                               | |
| 14.04 LTS trusty | Not in release | |
| chromium-browser | 25.10 questing | 
                                Fixed 78.0.3904.70-0ubuntu1 
                                
                               | 
| 25.04 plucky | 
                                Fixed 78.0.3904.70-0ubuntu1 
                                
                               | |
| 24.04 LTS noble | 
                                Fixed 78.0.3904.70-0ubuntu1 
                                
                               | |
| 22.04 LTS jammy | 
                                Fixed 78.0.3904.70-0ubuntu1 
                                
                               | |
| 20.04 LTS focal | 
                                Fixed 78.0.3904.70-0ubuntu1 
                                
                               | |
| 18.04 LTS bionic | 
                                Fixed 78.0.3904.70-0ubuntu0.18.04.2 
                                
                               | |
| 16.04 LTS xenial | 
                                Fixed 78.0.3904.70-0ubuntu0.16.04.2 
                                
                               | |
| 14.04 LTS trusty | Not in release | |
| sitecopy | 25.10 questing | 
                                Needs evaluation 
                                
                               | 
| 25.04 plucky | 
                                Needs evaluation 
                                
                               | |
| 24.04 LTS noble | Not in release | |
| 22.04 LTS jammy | 
                                Needs evaluation 
                                
                               | |
| 20.04 LTS focal | 
                                Needs evaluation 
                                
                               | |
| 18.04 LTS bionic | 
                                Needs evaluation 
                                
                               | |
| 16.04 LTS xenial | 
                                Needs evaluation 
                                
                               | |
| 14.04 LTS trusty | Not in release | |
| swish-e | 25.10 questing | 
                                Needs evaluation 
                                
                               | 
| 25.04 plucky | 
                                Needs evaluation 
                                
                               | |
| 24.04 LTS noble | 
                                Needs evaluation 
                                
                               | |
| 22.04 LTS jammy | 
                                Needs evaluation 
                                
                               | |
| 20.04 LTS focal | 
                                Needs evaluation 
                                
                               | |
| 18.04 LTS bionic | 
                                Needs evaluation 
                                
                               | |
| 16.04 LTS xenial | 
                                Needs evaluation 
                                
                               | |
| 14.04 LTS trusty | Not in release | |
| coin3 | 25.10 questing | 
                                Not affected 
                                
                               | 
| 25.04 plucky | 
                                Not affected 
                                
                               | |
| 24.04 LTS noble | 
                                Not affected 
                                
                               | |
| 22.04 LTS jammy | 
                                Not affected 
                                
                               | |
| 20.04 LTS focal | 
                                Not affected 
                                
                               | |
| 18.04 LTS bionic | 
                                Vulnerable 
                                
                               | |
| 16.04 LTS xenial | 
                                Vulnerable 
                                
                               | |
| 14.04 LTS trusty | 
                                Vulnerable 
                                
                               | |
| firefox | 25.10 questing | 
                                Fixed 70.0+build2-0ubuntu1 
                                
                               | 
| 25.04 plucky | 
                                Fixed 70.0+build2-0ubuntu1 
                                
                               | |
| 24.04 LTS noble | 
                                Fixed 70.0+build2-0ubuntu1 
                                
                               | |
| 22.04 LTS jammy | 
                                Fixed 70.0+build2-0ubuntu1 
                                
                               | |
| 20.04 LTS focal | 
                                Fixed 70.0+build2-0ubuntu1 
                                
                               | |
| 18.04 LTS bionic | 
                                Fixed 70.0+build2-0ubuntu0.18.04.1 
                                
                               | |
| 16.04 LTS xenial | 
                                Fixed 70.0+build2-0ubuntu0.16.04.1 
                                
                               | |
| 14.04 LTS trusty | Not in release | |
| matanza | 25.10 questing | Ignored | 
| 25.04 plucky | Ignored | |
| 24.04 LTS noble | Ignored | |
| 22.04 LTS jammy | Ignored | |
| 20.04 LTS focal | Ignored | |
| 18.04 LTS bionic | Ignored | |
| 16.04 LTS xenial | Ignored | |
| 14.04 LTS trusty | Not in release | |
| smart | 25.10 questing | Not in release | 
| 25.04 plucky | Not in release | |
| 24.04 LTS noble | Not in release | |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | 
                                Not affected 
                                
                               | |
| 16.04 LTS xenial | 
                                Not affected 
                                
                               | |
| 14.04 LTS trusty | Not in release | |
| libxmltok | 25.10 questing | Not in release | 
| 25.04 plucky | 
                                Vulnerable 
                                
                               | |
| 24.04 LTS noble | 
                                Fixed 1.2-4.1ubuntu2.24.0.4.1+esm2 
                                
                                   | |
| 22.04 LTS jammy | 
                                Fixed 1.2-4ubuntu0.22.04.1~esm4 
                                
                                   | |
| 20.04 LTS focal | 
                                Fixed 1.2-4ubuntu0.20.04.1~esm4 
                                
                                   | |
| 18.04 LTS bionic | 
                                Fixed 1.2-4ubuntu0.18.04.1~esm4 
                                
                                   | |
| 16.04 LTS xenial | 
                                Fixed 1.2-3ubuntu0.16.04.1~esm2 
                                
                                   | |
| 14.04 LTS trusty | Ignored end of standard support | |
| tdom | 25.10 questing | 
                                Needs evaluation 
                                
                               | 
| 25.04 plucky | 
                                Needs evaluation 
                                
                               | |
| 24.04 LTS noble | 
                                Needs evaluation 
                                
                               | |
| 22.04 LTS jammy | 
                                Needs evaluation 
                                
                               | |
| 20.04 LTS focal | 
                                Needs evaluation 
                                
                               | |
| 18.04 LTS bionic | 
                                Needs evaluation 
                                
                               | |
| 16.04 LTS xenial | 
                                Needs evaluation 
                                
                               | |
| 14.04 LTS trusty | Not in release | |
| wbxml2 | 25.10 questing | 
                                Needs evaluation 
                                
                               | 
| 25.04 plucky | 
                                Needs evaluation 
                                
                               | |
| 24.04 LTS noble | 
                                Needs evaluation 
                                
                               | |
| 22.04 LTS jammy | 
                                Needs evaluation 
                                
                               | |
| 20.04 LTS focal | 
                                Needs evaluation 
                                
                               | |
| 18.04 LTS bionic | 
                                Needs evaluation 
                                
                               | |
| 16.04 LTS xenial | 
                                Needs evaluation 
                                
                               | |
| 14.04 LTS trusty | Not in release | |
| xmlrpc-c | 25.10 questing | 
                                Vulnerable 
                                
                               | 
| 25.04 plucky | 
                                Vulnerable 
                                
                               | |
| 24.04 LTS noble | 
                                Vulnerable 
                                
                               | |
| 22.04 LTS jammy | 
                                Vulnerable 
                                
                               | |
| 20.04 LTS focal | 
                                Vulnerable 
                                
                               | |
| 18.04 LTS bionic | 
                                Vulnerable 
                                
                               | |
| 16.04 LTS xenial | 
                                Vulnerable 
                                
                               | |
| 14.04 LTS trusty | 
                                Vulnerable 
                                
                               | |
| apache2 | 25.10 questing | 
                                Not affected 
                                
                               | 
| 25.04 plucky | 
                                Not affected 
                                
                               | |
| 24.04 LTS noble | 
                                Not affected 
                                
                               | |
| 22.04 LTS jammy | 
                                Not affected 
                                
                               | |
| 20.04 LTS focal | 
                                Not affected 
                                
                               | |
| 18.04 LTS bionic | 
                                Not affected 
                                
                               | |
| 16.04 LTS xenial | 
                                Not affected 
                                
                               | |
| 14.04 LTS trusty | 
                                Not affected 
                                
                               | |
| apr-util | 25.10 questing | 
                                Not affected 
                                
                               | 
| 25.04 plucky | 
                                Not affected 
                                
                               | |
| 24.04 LTS noble | 
                                Not affected 
                                
                               | |
| 22.04 LTS jammy | 
                                Not affected 
                                
                               | |
| 20.04 LTS focal | 
                                Not affected 
                                
                               | |
| 18.04 LTS bionic | 
                                Not affected 
                                
                               | |
| 16.04 LTS xenial | 
                                Not affected 
                                
                               | |
| 14.04 LTS trusty | 
                                Not affected 
                                
                               | |
| cmake | 25.10 questing | 
                                Not affected 
                                
                               | 
| 25.04 plucky | 
                                Not affected 
                                
                               | |
| 24.04 LTS noble | 
                                Not affected 
                                
                               | |
| 22.04 LTS jammy | 
                                Not affected 
                                
                               | |
| 20.04 LTS focal | 
                                Not affected 
                                
                               | |
| 18.04 LTS bionic | 
                                Not affected 
                                
                               | |
| 16.04 LTS xenial | 
                                Not affected 
                                
                               | |
| 14.04 LTS trusty | Not in release | |
| ghostscript | 25.10 questing | 
                                Not affected 
                                
                               | 
| 25.04 plucky | 
                                Not affected 
                                
                               | |
| 24.04 LTS noble | 
                                Not affected 
                                
                               | |
| 22.04 LTS jammy | 
                                Not affected 
                                
                               | |
| 20.04 LTS focal | 
                                Not affected 
                                
                               | |
| 18.04 LTS bionic | 
                                Not affected 
                                
                               | |
| 16.04 LTS xenial | 
                                Not affected 
                                
                               | |
| 14.04 LTS trusty | Not in release | |
| texlive-bin | 25.10 questing | 
                                Not affected 
                                
                               | 
| 25.04 plucky | 
                                Not affected 
                                
                               | |
| 24.04 LTS noble | 
                                Not affected 
                                
                               | |
| 22.04 LTS jammy | 
                                Not affected 
                                
                               | |
| 20.04 LTS focal | 
                                Not affected 
                                
                               | |
| 18.04 LTS bionic | 
                                Not affected 
                                
                               | |
| 16.04 LTS xenial | 
                                Not affected 
                                
                               | |
| 14.04 LTS trusty | Not in release | |
| vtk | 25.10 questing | Not in release | 
| 25.04 plucky | Not in release | |
| 24.04 LTS noble | Not in release | |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | Not in release | |
| 16.04 LTS xenial | 
                                Fixed 5.10.1+dfsg-2.1ubuntu0.1~esm1 
                                
                                   | |
| 14.04 LTS trusty | 
                                Fixed 5.8.0-14.1ubuntu3+esm1 
                                
                                   | |
| cableswig | 25.10 questing | Not in release | 
| 25.04 plucky | Not in release | |
| 24.04 LTS noble | Not in release | |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | Not in release | |
| 16.04 LTS xenial | 
                                Needs evaluation 
                                
                               | |
| 14.04 LTS trusty | Not in release | |
| vnc4 | 25.10 questing | Not in release | 
| 25.04 plucky | Not in release | |
| 24.04 LTS noble | Not in release | |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | 
                                Vulnerable 
                                
                               | |
| 16.04 LTS xenial | 
                                Vulnerable 
                                
                               | |
| 14.04 LTS trusty | 
                                Vulnerable 
                                
                               | |
| expat | 25.10 questing | 
                                Not affected 
                                
                               | 
| 25.04 plucky | 
                                Not affected 
                                
                               | |
| 24.04 LTS noble | 
                                Not affected 
                                
                               | |
| 22.04 LTS jammy | 
                                Not affected 
                                
                               | |
| 20.04 LTS focal | 
                                Not affected 
                                
                               | |
| 18.04 LTS bionic | 
                                Fixed 2.2.5-3ubuntu0.2 
                                
                               | |
| 16.04 LTS xenial | 
                                Fixed 2.1.0-7ubuntu0.16.04.5 
                                
                               | |
| 14.04 LTS trusty | 
                                Fixed 2.1.0-4ubuntu1.4+esm2 
                                
                                   | |
| gdcm | 25.10 questing | 
                                Not affected 
                                
                               | 
| 25.04 plucky | 
                                Not affected 
                                
                               | |
| 24.04 LTS noble | 
                                Not affected 
                                
                               | |
| 22.04 LTS jammy | 
                                Not affected 
                                
                               | |
| 20.04 LTS focal | 
                                Not affected 
                                
                               | |
| 18.04 LTS bionic | 
                                Not affected 
                                
                               | |
| 16.04 LTS xenial | 
                                Not affected 
                                
                               | |
| 14.04 LTS trusty | 
                                Not affected 
                                
                               | |
| kompozer | 25.10 questing | Not in release | 
| 25.04 plucky | Not in release | |
| 24.04 LTS noble | Not in release | |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | Not in release | |
| 16.04 LTS xenial | Not in release | |
| 14.04 LTS trusty | Not in release | |
| libparagui1.1 | 25.10 questing | Not in release | 
| 25.04 plucky | Not in release | |
| 24.04 LTS noble | Not in release | |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | Not in release | |
| 16.04 LTS xenial | Not in release | |
| 14.04 LTS trusty | Not in release | |
| poco | 25.10 questing | 
                                Not affected 
                                
                               | 
| 25.04 plucky | 
                                Not affected 
                                
                               | |
| 24.04 LTS noble | 
                                Not affected 
                                
                               | |
| 22.04 LTS jammy | 
                                Not affected 
                                
                               | |
| 20.04 LTS focal | 
                                Not affected 
                                
                               | |
| 18.04 LTS bionic | 
                                Not affected 
                                
                               | |
| 16.04 LTS xenial | 
                                Not affected 
                                
                               | |
| 14.04 LTS trusty | 
                                Not affected 
                                
                               | |
| simgear | 25.10 questing | 
                                Not affected 
                                
                               | 
| 25.04 plucky | 
                                Not affected 
                                
                               | |
| 24.04 LTS noble | 
                                Not affected 
                                
                               | |
| 22.04 LTS jammy | 
                                Not affected 
                                
                               | |
| 20.04 LTS focal | 
                                Not affected 
                                
                               | |
| 18.04 LTS bionic | 
                                Not affected 
                                
                               | |
| 16.04 LTS xenial | 
                                Not affected 
                                
                               | |
| 14.04 LTS trusty | Not in release | |
| thunderbird | 25.10 questing | 
                                Fixed 1:68.2.0+build1.1-0ubuntu1 
                                
                               | 
| 25.04 plucky | 
                                Fixed 1:68.2.0+build1.1-0ubuntu1 
                                
                               | |
| 24.04 LTS noble | 
                                Fixed 1:68.2.0+build1.1-0ubuntu1 
                                
                               | |
| 22.04 LTS jammy | 
                                Fixed 1:68.2.0+build1.1-0ubuntu1 
                                
                               | |
| 20.04 LTS focal | 
                                Fixed 1:68.2.0+build1.1-0ubuntu1 
                                
                               | |
| 18.04 LTS bionic | 
                                Fixed 1:68.2.1+build1-0ubuntu0.18.04.1 
                                
                               | |
| 16.04 LTS xenial | 
                                Fixed 1:68.7.0+build1-0ubuntu0.16.04.2 
                                
                               | |
| 14.04 LTS trusty | Not in release | |
| wxwidgets2.8 | 25.10 questing | Not in release | 
| 25.04 plucky | Not in release | |
| 24.04 LTS noble | Not in release | |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | Not in release | |
| 16.04 LTS xenial | Not in release | |
| 14.04 LTS trusty | Not in release | 
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| Parameter | Value | 
|---|---|
| Base score |  | 
| Attack vector | Network | 
| Attack complexity | Low | 
| Privileges required | None | 
| User interaction | None | 
| Scope | Unchanged | 
| Confidentiality | None | 
| Integrity impact | None | 
| Availability impact | High | 
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | 
References
Related Ubuntu Security Notices (USN)
- USN-4202-1
- Thunderbird vulnerabilities
- 26 November 2019
- USN-4335-1
- Thunderbird vulnerabilities
- 21 April 2020
- USN-4165-1
- Firefox vulnerabilities
- 23 October 2019
- USN-4132-2
- Expat vulnerability
- 12 September 2019
- USN-4132-1
- Expat vulnerability
- 12 September 2019
- USN-4852-1
- VTK vulnerabilities
- 15 March 2021
- USN-5455-1
- xmltok library vulnerabilities
- 19 July 2022
- USN-7199-1
- xmltok library vulnerabilities
- 13 January 2025
Other references
- https://github.com/libexpat/libexpat/commit/c20b758c332d9a13afbbb276d30db1d183a85d43
- https://github.com/libexpat/libexpat/issues/317
- https://github.com/libexpat/libexpat/pull/318
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-34/#CVE-2019-15903
- https://www.cve.org/CVERecord?id=CVE-2019-15903