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CVE-2013-0845: FFmpeg may write outside memory with crafted data

CVE-2013-0845 · published 12 years ago

Summary

The FFmpeg video tool can be tricked into writing data beyond its allocated memory when it processes a specially crafted input. This could let an attacker cause the program to behave unpredictably or crash. Update FFmpeg to the latest version to protect against this risk.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software

Vendor	Product	Affected versions
ffmpeg	ffmpeg	<= 1.0.3 0.3 0.3.1 0.3.2 0.3.3 0.3.4 0.4.0 0.4.2 0.4.3 0.4.4 0.4.5 0.4.6 45 more version ranges `cpe:2.3:a:ffmpeg:ffmpeg::::::::`

Original advisory text

libavcodec/alsdec.c in FFmpeg before 1.0.4 allows remote attackers to have an unspecified impact via a crafted block length, which triggers an out-of-bounds write.

References

Fix within

Internet-facing 14 days

Internal At next upgrade

Not known to be exploited
Needs hands-on effort to exploit (estimated)
Gives an attacker full control (estimated)

Severity

9.3 Critical

Exploitation

4% chance of attack within 30 days

Type

CWE-119Buffer Overflow

Timeline

Published7 Dec 2013

Updated4 Nov 2026

First seen29 Sep 2026

Sources

CVE-2013-0845 · NVD

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