Input validation error in Mozilla Firefox - CVE-2012-0823
Published: February 23, 2012 / Updated: July 28, 2020
Vulnerability identifier: #VU32821
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2012-0823
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
VP8 Codec SDK (libvpx) before 1.0.0 "Duclair" allows remote attackers to cause a denial of service (application crash) via (1) unspecified "corrupt input" or (2) by "starting decoding from a P-frame," which triggers an out-of-bounds read, related to "the clamping of motion vectors in SPLITMV blocks".
Affected software
Mozilla Firefox
ffmpeg (Alpine package)
libvpx (Alpine package)
gst-plugins-bad (Alpine package)
firefox (Alpine package)
ffmpeg (Alpine package)
libvpx (Alpine package)
gst-plugins-bad (Alpine package)
firefox (Alpine package)
How to mitigate CVE-2012-0823
Install update from vendor's website.
ffmpeg (Alpine package) - update to 0.6.1-r4
libvpx (Alpine package) - update to 1.0.0-r0
gst-plugins-bad (Alpine package) - update to 0.10.20-r2
firefox (Alpine package) - update to 7.0.1-r3
libvpx (Alpine package) - update to 1.0.0-r0
gst-plugins-bad (Alpine package) - update to 0.10.20-r2
firefox (Alpine package) - update to 7.0.1-r3
External References
- http://blog.webmproject.org/2012/01/vp8-codec-sdk-duclair-released.html
- http://code.google.com/p/webm/source/browse/CHANGELOG?repo=libvpx
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:023
- http://www.openwall.com/lists/oss-security/2012/01/28/4
- http://www.openwall.com/lists/oss-security/2012/01/30/2
- http://www.securityfocus.com/bid/51775