CVE-2011-3937

The H.263 codec (libavcodec/h263dec.c) in FFmpeg 0.7.x before 0.7.12, 0.8.x before 0.8.11, and unspecified versions before 0.10, and in Libav 0.5.x before…

published January 5, 2013

CVSS
—
EPSS
2%
Percentile
82.8
In the wild
Unconfirmed
What it is

⚠️ A quirky sizing issue in the H.263 codec could lead to unpredictable behavior in video handling! 📹 Think of it like a restaurant that can't quite handle guests who order meals in different portion sizes — if the kitchen staff isn't prepared, it could lead to some very odd and unappetizing dishes being served. While the specific impact remains a mystery, a mismanaged frame size could lead to crashes or unexpected behavior when you're trying to play videos. Imagine expecting a delicious dish but instead getting a jumbled mess on your plate!

Put simply

Think of it like a restaurant that can't quite handle guests who order meals in different portion sizes — if the kitchen staff isn't prepared, it could lead to some very odd and unappetizing dishes being served. This vulnerability arises from the H.263 codec in FFmpeg and Libav, where a change in width and height with frame threads is not handled properly, possibly leading to instability in video processing.

What to do

While the specific impact remains a mystery, a mismanaged frame size could lead to crashes or unexpected behavior when you're trying to play videos. Imagine expecting a delicious dish but instead getting a jumbled mess on your plate! To mitigate this, update FFmpeg to at least version 0.7.12, 0.8.11, or 0.10, and make sure Libav is patched to version 0.5.9, 0.6.6, or 0.7.5. It's a good idea to keep an eye on any content that utilizes these codecs and test thoroughly after patching! You've got this! With these updates, you’ll keep your video processing smooth and secure. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02270 · 82.8th percentile
Published
2013-01-05T00:00Z
EPSS history
Timeline
  • 05 JAN 00:00Z
    The H.263 codec (libavcodec/h263dec.c) in FFmpeg 0.7.x before 0.7.12, 0.8.x before 0.8.11, and unspecified versions before 0.10, and in Libav 0.5.x before…
    cvelistv5