CVE-2009-4634
Multiple integer underflows in FFmpeg 0.5 allow remote attackers to cause a denial of service and...
Multiple integer underflows in FFmpeg 0.5 allow remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted file that (1) bypasses a validation check in vorbis_dec.c and triggers a wraparound of the stack pointer, or (2) access a pointer from out-of-bounds memory in mov.c, related to an elst tag that appears before a tag that creates a stream.
Exploit likelihood
What each source reports
NVD Score used
10.0
Multiple integer underflows in FFmpeg 0.5 allow remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted file that (1) bypasses a validation check in vorbis_dec.c and triggers a wraparound of the stack pointer, or (2) access a pointer from out-of-bounds memory in mov.c, related to an elst tag that appears before a tag that creates a stream.
- Record
CVE-2009-4634- CVSS 2.0
- 10.0 High
AV:N/AC:L/Au:N/C:C/I:C/A:C - Weakness
- CWE-189
- Updated
- 2026-11-02
CVE List No score
Multiple integer underflows in FFmpeg 0.5 allow remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted file that (1) bypasses a validation check in vorbis_dec.c and triggers a wraparound of the stack pointer, or (2) access a pointer from out-of-bounds memory in mov.c, related to an elst tag that appears before a tag that creates a stream.
- Record
CVE-2009-4634- Updated
- 2026-11-02
EUVDEUVD-2009-4599 No score
Multiple integer underflows in FFmpeg 0.5 allow remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted file that (1) bypasses a validation check in vorbis_dec.c and triggers a wraparound of the stack pointer, or (2) access a pointer from out-of-bounds memory in mov.c, related to an elst tag that appears before a tag that creates a stream.
- Record
EUVD-2009-4599- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-66fh-frph-79g7 No score
Multiple integer underflows in FFmpeg 0.5 allow remote attackers to cause a denial of service and...
Multiple integer underflows in FFmpeg 0.5 allow remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted file that (1) bypasses a validation check in vorbis_dec.c and triggers a wraparound of the stack pointer, or (2) access a pointer from out-of-bounds memory in mov.c, related to an elst tag that appears before a tag that creates a stream.
- Record
GHSA-66fh-frph-79g7- Updated
- 2026-11-02
OSV No score
Multiple integer underflows in FFmpeg 0.5 allow remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted file that (1) bypasses a validation check in vorbis_dec.c and triggers a wraparound of the stack pointer, or (2) access a pointer from out-of-bounds memory in mov.c, related to an elst tag that appears before a tag that creates a stream.
- Record
CVE-2009-4634- Updated
- 2026-11-02
OSVDEBIAN-CVE-2009-4634 No score
Multiple integer underflows in FFmpeg 0.5 allow remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted file that (1) bypasses a validation check in vorbis_dec.c and triggers a wraparound of the stack pointer, or (2) access a pointer from out-of-bounds memory in mov.c, related to an elst tag that appears before a tag that creates a stream.
- Record
DEBIAN-CVE-2009-4634- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
ffmpegDebian:12 |
before 4:0.5+svn20090706-3 | 4:0.5+svn20090706-3 |
ffmpegDebian:13 |
before 4:0.5+svn20090706-3 | 4:0.5+svn20090706-3 |
ffmpegDebian:14 |
before 4:0.5+svn20090706-3 | 4:0.5+svn20090706-3 |
ffmpeg-debianDebian:5.0 From an advisory covering 9 CVEs |
before 0.svn20080206-18+lenny1, plus listed versions 0.svn20080206-160.svn20080206-170.svn20080206-17+lenny10.svn20080206-18 |
0.svn20080206-18+lenny1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2009-4634 is a high vulnerability (CVSS 10.0) in Ffmpeg, published February 10, 2010. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 7.15%, the 94th percentile. Fixed in ffmpeg 4:0.5+svn20090706-3.
References
mandriva.com/security/advisories?name=MDVSA-2011:088
secunia.com/advisories/36805
securityfocus.com/bid/36465
secunia.com/advisories/39482
roundup.ffmpeg.org/roundup/ffmpeg/issue1240
mandriva.com/security/advisories?name=MDVSA-2011:061
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mandriva.com/security/advisories?name=MDVSA-2011:112
mandriva.com/security/advisories?name=MDVSA-2011:114
scarybeastsecurity.blogspot.com/2009/09/patching-ffmpeg-into-shape.html
mandriva.com/security/advisories?name=MDVSA-2011:059
secunia.com/advisories/38643
vupen.com/english/advisories/2011/1241
mandriva.com/security/advisories?name=MDVSA-2011:060
debian.org/security/2010/dsa-2000
ubuntu.com/usn/USN-931-1
vupen.com/english/advisories/2010/0935
nvd.nist.gov/vuln/detail/CVE-2009-4634
github.com/advisories/GHSA-66fh-frph-79g7
security-tracker.debian.org/tracker/CVE-2009-4634