CVE-2011-4352

CVE-2011-4352 is a medium-severity vulnerability in Libav with a CVSS 2.0 base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-189.

Key facts

• Severity: Medium (CVSS 2.0 base score 6.8)
• EPSS exploit prediction: 7% (93rd percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-189
• Affected product: Libav
• Published: 2012-08-20
• Last modified: 2026-06-16

Description

Integer overflow in the vp3_dequant function in the VP3 decoder (vp3.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 (crash) and possibly execute arbitrary code via a crafted VP3 stream, which triggers a buffer overflow.

Frequently asked questions

What is CVE-2011-4352?

Integer overflow in the vp3_dequant function in the VP3 decoder (vp3.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 (crash) and possibly execute arbitrary code via a crafted VP3 stream, which triggers a buffer overflow.

How severe is CVE-2011-4352?

CVE-2011-4352 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2011-4352 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-4352?

CVE-2011-4352 primarily affects Libav. In total, 42 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-4352?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-4352 published?

CVE-2011-4352 was published on 2012-08-20 and last updated on 2026-06-16.

References

• http://ffmpeg.org/
• http://git.libav.org/?p=libav.git%3Ba=commit%3Bh=8b94df0f2047e9728cb872adc9e64557b7a5152f
• http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=eef5c35b4352ec49ca41f6198bee8a976b1f81e5
• http://libav.org/
• http://libav.org/releases/libav-0.5.6.changelog
• http://libav.org/releases/libav-0.6.4.changelog
• http://libav.org/releases/libav-0.7.3.changelog
• http://ubuntu.com/usn/usn-1320-1
• http://ubuntu.com/usn/usn-1333-1
• http://www.mandriva.com/security/advisories?name=MDVSA-2012:074
• http://www.mandriva.com/security/advisories?name=MDVSA-2012:075
• http://www.mandriva.com/security/advisories?name=MDVSA-2012:076
• http://www.securityfocus.com/archive/1/520622

Affected products (42)

• cpe:2.3:a:libav:libav:0.5:*:*:*:*:*:*:*
• cpe:2.3:a:libav:libav:0.5.1:*:*:*:*:*:*:*
• cpe:2.3:a:libav:libav:0.5.2:*:*:*:*:*:*:*
• cpe:2.3:a:libav:libav:0.5.3:*:*:*:*:*:*:*
• cpe:2.3:a:libav:libav:0.5.4:*:*:*:*:*:*:*
• cpe:2.3:a:libav:libav:0.5.5:*:*:*:*:*:*:*
• cpe:2.3:a:libav:libav:0.6:*:*:*:*:*:*:*
• cpe:2.3:a:libav:libav:0.6.1:*:*:*:*:*:*:*
• cpe:2.3:a:libav:libav:0.6.2:*:*:*:*:*:*:*
• cpe:2.3:a:libav:libav:0.6.3:*:*:*:*:*:*:*
• cpe:2.3:a:libav:libav:0.7:*:*:*:*:*:*:*
• cpe:2.3:a:libav:libav:0.7:beta1:*:*:*:*:*:*
• cpe:2.3:a:libav:libav:0.7:beta2:*:*:*:*:*:*
• cpe:2.3:a:libav:libav:0.7.1:*:*:*:*:*:*:*
• cpe:2.3:a:ffmpeg:ffmpeg:0.5:*:*:*:*:*:*:*
• cpe:2.3:a:ffmpeg:ffmpeg:0.5.1:*:*:*:*:*:*:*
• cpe:2.3:a:ffmpeg:ffmpeg:0.5.2:*:*:*:*:*:*:*
• cpe:2.3:a:ffmpeg:ffmpeg:0.5.3:*:*:*:*:*:*:*
• cpe:2.3:a:ffmpeg:ffmpeg:0.5.4:*:*:*:*:*:*:*
• cpe:2.3:a:ffmpeg:ffmpeg:0.5.4.5:*:*:*:*:*:*:*
• cpe:2.3:a:ffmpeg:ffmpeg:0.5.4.6:*:*:*:*:*:*:*
• cpe:2.3:a:ffmpeg:ffmpeg:0.6:*:*:*:*:*:*:*
• cpe:2.3:a:ffmpeg:ffmpeg:0.6.1:*:*:*:*:*:*:*
• cpe:2.3:a:ffmpeg:ffmpeg:0.6.2:*:*:*:*:*:*:*
• cpe:2.3:a:ffmpeg:ffmpeg:0.6.3:*:*:*:*:*:*:*
• cpe:2.3:a:ffmpeg:ffmpeg:0.7:*:*:*:*:*:*:*
• cpe:2.3:a:ffmpeg:ffmpeg:0.7.1:*:*:*:*:*:*:*
• cpe:2.3:a:ffmpeg:ffmpeg:0.7.2:*:*:*:*:*:*:*
• cpe:2.3:a:ffmpeg:ffmpeg:0.7.3:*:*:*:*:*:*:*
• cpe:2.3:a:ffmpeg:ffmpeg:0.7.4:*:*:*:*:*:*:*
• cpe:2.3:a:ffmpeg:ffmpeg:0.7.5:*:*:*:*:*:*:*
• cpe:2.3:a:ffmpeg:ffmpeg:0.7.6:*:*:*:*:*:*:*
• cpe:2.3:a:ffmpeg:ffmpeg:0.7.7:*:*:*:*:*:*:*
• cpe:2.3:a:ffmpeg:ffmpeg:0.7.8:*:*:*:*:*:*:*
• cpe:2.3:a:ffmpeg:ffmpeg:0.8.0:*:*:*:*:*:*:*
• cpe:2.3:a:ffmpeg:ffmpeg:0.8.1:*:*:*:*:*:*:*
• cpe:2.3:a:ffmpeg:ffmpeg:0.8.2:*:*:*:*:*:*:*
• cpe:2.3:a:ffmpeg:ffmpeg:0.8.5:*:*:*:*:*:*:*
• cpe:2.3:a:ffmpeg:ffmpeg:0.8.5.3:*:*:*:*:*:*:*
• cpe:2.3:a:ffmpeg:ffmpeg:0.8.5.4:*:*:*:*:*:*:*

More vulnerabilities in Libav

• CVE-2014-3984 — Critical (CVSS 10.0): Multiple unspecified vulnerabilities in Libav before 0.8.12 allow remote attackers to have unknown impact and vectors.
• CVE-2011-3937 — Critical (CVSS 10.0): 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…
• CVE-2012-5144 — Critical (CVSS 10.0): Google Chrome before 23.0.1271.97, and Libav 0.7.x before 0.7.7 and 0.8.x before 0.8.5, do not properly perform AAC…
• CVE-2012-2804 — Critical (CVSS 10.0): Unspecified vulnerability in libavcodec/indeo3.c in FFmpeg before 0.11 and Libav 0.8.x before 0.8.5 has unknown impact…
• CVE-2012-2803 — Critical (CVSS 10.0): Double free vulnerability in the mpeg_decode_frame function in libavcodec/mpeg12.c in FFmpeg before 0.11, and Libav…
• CVE-2012-2802 — Critical (CVSS 10.0): Unspecified vulnerability in the ac3_decode_frame function in libavcodec/ac3dec.c in FFmpeg before 0.11 and Libav 0.8.x…

All CVEs affecting Libav →

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