CVE-2018-13844

Publication date 10 July 2018

Last updated 4 August 2025

Ubuntu priority

Cvss 3 Severity Score

An issue has been found in HTSlib 1.8. It is a memory leak in fai_read in faidx.c. NOTE: This has been disputed with the assertion that this vulnerability exists in the test harness and HTSlib users would be aware of the need to destruct this object returned by fai_load() in their own code

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
htslib	19.04 disco	Not affected
	18.10 cosmic	Not affected
	18.04 LTS bionic	Not affected
	17.10 artful	Ignored end of life
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not affected

Notes

ebarretto

Fix was done in test code. Since the test is only available in htslib >= 1.8, then marking as not affected in earlier versions of htslib

Severity score breakdown

Parameter	Value
Base score	7.5 · High
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