low
2.6
CWE
119
Advisory Published
Updated

CVE-2012-0856: Buffer Overflow

First published: Mon Aug 20 2012(Updated: )

Heap-based buffer overflow in the MPV_frame_start function in libavcodec/mpegvideo.c in FFmpeg before 0.9.1, when the lowres option is enabled, allows remote attackers to cause a denial of service (application crash) via a crafted H263 media file. NOTE: this vulnerability exists because of a regression error.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
FFmpeg<=0.9
FFmpeg=0.3
FFmpeg=0.3.1
FFmpeg=0.3.2
FFmpeg=0.3.3
FFmpeg=0.3.4
FFmpeg=0.4.0
FFmpeg=0.4.2
FFmpeg=0.4.3
FFmpeg=0.4.4
FFmpeg=0.4.5
FFmpeg=0.4.6
FFmpeg=0.4.7
FFmpeg=0.4.8
FFmpeg=0.4.9
FFmpeg=0.4.9-pre1
FFmpeg=0.5
FFmpeg=0.5.1
FFmpeg=0.5.2
FFmpeg=0.5.3
FFmpeg=0.5.4
FFmpeg=0.6
FFmpeg=0.6.1
FFmpeg=0.6.2
FFmpeg=0.7
FFmpeg=0.7.1
FFmpeg=0.7.2
FFmpeg=0.7.3
FFmpeg=0.7.6
FFmpeg=0.7.7
FFmpeg=0.7.8
FFmpeg=0.7.9
FFmpeg=0.7.11
FFmpeg=0.7.12
FFmpeg=0.8.0
FFmpeg=0.8.1
FFmpeg=0.8.2
FFmpeg=0.8.5
FFmpeg=0.8.6
FFmpeg=0.8.7
FFmpeg=0.8.8
FFmpeg=0.8.10
FFmpeg=0.8.11

Remedy

http://git.videolan.org/?p=ffmpeg.git;a=commit;h=21270cffaeab2f67a613907516b2b0cd6c9eacf4

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2012-0856?

    CVE-2012-0856 has a severity level that may lead to denial of service due to a heap-based buffer overflow.

  • How do I fix CVE-2012-0856?

    To mitigate CVE-2012-0856, it is recommended to upgrade to FFmpeg version 0.9.1 or later.

  • What causes the vulnerability in CVE-2012-0856?

    CVE-2012-0856 is caused by a heap-based buffer overflow in the MPV_frame_start function when the lowres option is enabled.

  • Which versions of FFmpeg are affected by CVE-2012-0856?

    FFmpeg versions prior to 0.9.1, including versions 0.3 through 0.8.11, are affected by CVE-2012-0856.

  • What type of attack can exploit CVE-2012-0856?

    CVE-2012-0856 can be exploited by remote attackers using crafted H263 media files to crash the application.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203