Bug 2448848

Summary:	CVE-2026-31965 htslib: HTSlib: Information disclosure or denial of service via out-of-bounds read in CRAM record processing [fedora-42]
Product:	[Fedora] Fedora	Reporter:	Praise Ogwuche <pogwuche>
Component:	htslib	Assignee:	Jun Aruga <jaruga>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	42	CC:	jaruga, jmarshall, ron
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["b579a7ad-efc2-4cc2-8f0b-0761684fd236"]}
Fixed In Version:	htslib-1.23.1-1.fc42	Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2026-03-28 01:06:28 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2448751

Description Praise Ogwuche 2026-03-18 20:41:51 UTC

Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

Comment 1 Fedora Update System 2026-03-19 16:12:58 UTC

FEDORA-2026-1fc0d39acd (bcftools-1.23.1-1.fc42, htslib-1.23.1-1.fc42, and 1 more) has been submitted as an update to Fedora 42.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-1fc0d39acd

Comment 2 Fedora Update System 2026-03-20 01:50:26 UTC

FEDORA-2026-1fc0d39acd has been pushed to the Fedora 42 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-1fc0d39acd`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-1fc0d39acd

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 3 Fedora Update System 2026-03-28 01:06:28 UTC

FEDORA-2026-1fc0d39acd (bcftools-1.23.1-1.fc42, htslib-1.23.1-1.fc42, and 1 more) has been pushed to the Fedora 42 stable repository.
If problem still persists, please make note of it in this bug report.