Bug 2057776 (CVE-2021-0561)

Summary:	CVE-2021-0561 flac: out of bound write in append_to_verify_fifo_interleaved_ of stream_encoder.c
Product:	[Other] Security Response	Reporter:	Avinash Hanwate <ahanwate>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	ajax, caillon+fedoraproject, gnome-sig, mclasen, mlichvar, rhughes, rstrode, sandmann
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	flac 1.3.4	Doc Type:	If docs needed, set a value
Doc Text:	An out-of-bounds write vulnerability was found in libFlak. The vulnerability occurs due to a missing bounds check. This flaw allows a local attacker without additional execution privileges to cause local information disclosure.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-12-04 23:32:53 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:	2057777, 2058481, 2058482
Bug Blocks:	2057778

Description Avinash Hanwate 2022-02-24 05:16:08 UTC

In append_to_verify_fifo_interleaved_ of stream_encoder.c, there is a possible out of bounds write due to a missing bounds check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.

https://security-tracker.debian.org/tracker/CVE-2021-0561
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0561
https://github.com/xiph/flac/commit/e1575e4a7c5157cbf4e4a16dbd39b74f7174c7be

Comment 1 Avinash Hanwate 2022-02-24 05:16:31 UTC

Created flac tracking bugs for this issue:

Affects: fedora-all [bug 2057777]

Comment 6 errata-xmlrpc 2022-11-15 10:09:15 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2022:8078 https://access.redhat.com/errata/RHSA-2022:8078

Comment 7 Product Security DevOps Team 2022-12-04 23:32:51 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2021-0561