Bug 1396645

Summary:	vmncdec - integer overflow in the allocation of the render buffer (no CVE yet)
Product:	[Fedora] Fedora	Reporter:	samoht0 <samoht0-bugzilla>
Component:	gstreamer-plugins-bad-free	Assignee:	Benjamin Otte <otte>
Status:	CLOSED DUPLICATE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	24	CC:	bnocera, fabian.deutsch, otte, wtaymans
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-11-21 07:24:46 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description samoht0 2016-11-18 20:00:50 UTC

Description of problem:

Security issue as described above and here:

https://scarybeastsecurity.blogspot.de/2016/11/0day-poc-risky-design-decisions-in.html

Fixed with this commit:

https://cgit.freedesktop.org/gstreamer/gst-plugins-bad/commit/gst/vmnc/vmncdec.c?id=4cb1bcf1422bbcd79c0f683edb7ee85e3f7a31fe

See also:

https://bugzilla.gnome.org/show_bug.cgi?id=774533

Version-Release number of selected component (if applicable):

gstreamer1-plugins-bad-free-1.8.3-1.fc24

Comment:

Apart from the fact, that mentioned crash needs 3rd-party software being installed in Fedora (Google Chrome), it would also being triggered, if a prepared file gets into the Home folder other ways. That's why I've chosen to set severity to high.

Comment 1 Andrej Nemec 2016-11-21 07:24:46 UTC


*** This bug has been marked as a duplicate of bug 1395768 ***