Bug 1788994 (CVE-2019-9433)

Summary:	CVE-2019-9433 libvpx: Use-after-free in vp8_deblock() in vp8/common/postproc.c
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	wtaymans
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	libvpx 1.8.0	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-09-29 21:59:26 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:	1796099, 1796100
Bug Blocks:	1789038

Description Pedro Sampaio 2020-01-08 14:33:25 UTC

In libvpx, there is a possible information disclosure due to improper input validation. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is needed for exploitation.

Upstream issue:

https://chromium-review.googlesource.com/c/webm/libvpx/%2B/1070753

Upstream patch:

https://github.com/webmproject/libvpx/commit/52add5896661d186dec284ed646a4b33b607d2c7

References:

http://www.openwall.com/lists/oss-security/2019/10/25/17 	
http://www.openwall.com/lists/oss-security/2019/10/27/1 	
http://www.openwall.com/lists/oss-security/2019/11/07/1

Comment 2 errata-xmlrpc 2020-09-29 19:28:50 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2020:3876 https://access.redhat.com/errata/RHSA-2020:3876

Comment 3 Product Security DevOps Team 2020-09-29 21:59:26 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-2019-9433

Comment 4 errata-xmlrpc 2020-11-04 02:30:49 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2020:4629 https://access.redhat.com/errata/RHSA-2020:4629