CVE-2014-7933: Use After Free
First published: Thu Jan 22 2015(Updated: )
Use-after-free vulnerability in the matroska_read_seek function in libavformat/matroskadec.c in FFmpeg before 2.5.1, as used in Google Chrome before 40.0.2214.91, allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted Matroska file that triggers improper maintenance of tracks data.
Credit: cve-coordination@google.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Google Chrome | <=40.0.2214.85 | |
| FFmpeg | <=2.5.0 |
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Reference Links
- http://git.videolan.org/?p=ffmpeg.git;a=commit;h=490a3ebf36821b81f73e34ad3f554cb523dd2682
- http://googlechromereleases.blogspot.com/2015/01/stable-update.html
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00005.html
- http://rhn.redhat.com/errata/RHSA-2015-0093.html
- http://secunia.com/advisories/62383
- http://secunia.com/advisories/62575
- http://secunia.com/advisories/62665
- http://security.gentoo.org/glsa/glsa-201502-13.xml
- http://www.securityfocus.com/bid/72288
- http://www.securitytracker.com/id/1031623
- http://www.ubuntu.com/usn/USN-2476-1
- https://code.google.com/p/chromium/issues/detail?id=427266
- http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=490a3ebf36821b81f73e34ad3f554cb523dd2682
Frequently Asked Questions
What is the severity of CVE-2014-7933?
CVE-2014-7933 is classified as a high severity vulnerability due to its potential to cause denial of service and other unspecified impacts.
How do I fix CVE-2014-7933?
To remedy CVE-2014-7933, upgrade FFmpeg to version 2.5.1 or later and ensure Google Chrome is updated to version 40.0.2214.91 or higher.
What software is affected by CVE-2014-7933?
CVE-2014-7933 affects FFmpeg versions before 2.5.1 and Google Chrome versions before 40.0.2214.91.
Can CVE-2014-7933 be exploited remotely?
Yes, CVE-2014-7933 can be exploited by remote attackers via a crafted Matroska file.
What type of vulnerability is CVE-2014-7933?
CVE-2014-7933 is a use-after-free vulnerability that can lead to denial of service.
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- version/google chrome/40.0.2214.85
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- canonical/ffmpeg
- version/ffmpeg/2.5.0