CVE-2011-4579: n/a vulnerability

CVE-2011-4579: The svq1_decode_frame function in the SVQ1 decoder (svq1dec.c) in libavcodec in FFmpeg 0.5.x before 0.5.7,...

The svq1_decode_frame function in the SVQ1 decoder (svq1dec.c) in libavcodec in FFmpeg 0.5.x before 0.5.7, 0.6.x before 0.6.4, 0.7.x before 0.7.9, and 0.8.x before 0.8.8; and in Libav 0.5.x before 0.5.6, 0.6.x before 0.6.4, and 0.7.x before 0.7.3 allows remote attackers to cause a denial of service (memory corruption) via a crafted SVQ1 stream, related to "dimensions changed."

UnknownCVSS not scoredNot KEV-listedUpdatedSep 17, 2024, 01:30 UTC (UTC+00:00)

Security readout for executives and security teams

This CVE affects old FFmpeg and Libav media decoders. A malicious SVQ1 video stream could corrupt memory and crash software that processes it. The clearest business risk is denial of service in systems that accept or transcode untrusted media. Exposure is most likely in legacy applications, servers, or appliances that embed old FFmpeg or Libav and decode user-supplied video files or streams. Modern patched distributions are less likely exposed, but bundled static libraries need separate verification. Prioritize remediation where legacy media-processing systems accept external uploads or streams. Treat internet-facing transcoders and content ingestion pipelines as higher urgency. Internal-only systems with no untrusted media path are lower priority but should still be retired or patched. Mitigation focus: Upgrade FFmpeg to 0.5.7, 0.6.4, 0.7.9, 0.8.8, or later.; Upgrade Libav to 0.5.6, 0.6.4, 0.7.3, or later.; Apply relevant operating system vendor updates, including Ubuntu or Mandriva advisories where applicable..

Prepared: Jun 28, 2026, 00:52 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Aug 20, 2012, 20:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

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1Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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