CVE-2019-9169

Publication date 26 February 2019

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

In the GNU C Library (aka glibc or libc6) through 2.29, proceed_next_node in posix/regexec.c has a heap-based buffer over-read via an attempted case-insensitive regular-expression match.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
eglibc	20.04 LTS focal	Not in release
	19.10 eoan	Not in release
	19.04 disco	Not in release
	18.10 cosmic	Not in release
	18.04 LTS bionic	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not affected
glibc	20.04 LTS focal	Not affected
	19.10 eoan	Not affected
	19.04 disco	Ignored end of life
	18.10 cosmic	Ignored end of life
	18.04 LTS bionic	Fixed 2.27-3ubuntu1.2
	16.04 LTS xenial	Fixed 2.23-0ubuntu11.2
	14.04 LTS trusty	Not in release

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
eglibc	Upstream: https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=583dd860d5b833037175247230a328f0050dbfe9;hp=2bac7daa58da1a313bd452369b0508b31e146637
glibc	Upstream: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=583dd860d5b833037175247230a328f0050dbfe9 Upstream: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=4d0b1b0f61bfba034e9e76a1d76acc59c975238f Upstream: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=2aee101ff6075dd97a99982a1ba29e21ec25c52f

Severity score breakdown

Parameter	Value
Base score	9.8 · Critical
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2019-9169

Cvss 3 Severity Score

Description

Status

Patch details

Severity score breakdown

References

Related Ubuntu Security Notices (USN)

Other references