Bug 1547349 (CVE-2018-6406)

Summary:	CVE-2018-6406 libwebm: Out of bounds read in libwebm_util.cc:ParseVP9SuperFrameIndex() can lead to information leak or potential denial of service
Product:	[Other] Security Response	Reporter:	Sam Fowler <sfowler>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	tpopela, yaneti
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-12-23 06:27:37 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:	1547350, 1547351
Bug Blocks:	1547356

Description Sam Fowler 2018-02-21 03:59:37 UTC

libwebm through versions 1.0.0.27, which is bundled in chromium, is vulnerable to an out of bounds read issue. The function common/libwebm_util.cc:ParseVP9SuperFrameIndex() does not validate child_frame_length data obtained from a .webm file, which can cause an information leak, denial of service or other potential unspecified impact.


Upstream Commit:

https://github.com/webmproject/libwebm/commit/8e88e04b07352f2ca449278b44a2d8ec7631bdcf

Comment 1 Sam Fowler 2018-02-21 04:00:04 UTC

Created chromium tracking bugs for this issue:

Affects: epel-7 [bug 1547350]
Affects: fedora-all [bug 1547351]

Comment 3 Product Security DevOps Team 2020-12-23 06:27:37 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-2018-6406