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CVE-2014-7933

Use-after-free vulnerability in the matroska_read_seek function in libavformat/matroskadec.c in...

7.5 HighFix available

Use-after-free vulnerability in the matroska_read_seek function in libavformat/matroskadec.c in FFmpeg before 2.5.1, as used in Google Chrome before 40.0.2214.91, allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted Matroska file that triggers improper maintenance of tracks data.

Exploit likelihood

2.80%Up 0.6 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 7.5

Use-after-free vulnerability in the matroska_read_seek function in libavformat/matroskadec.c in FFmpeg before 2.5.1, as used in Google Chrome before 40.0.2214.91, allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted Matroska file that triggers improper maintenance of tracks data.

Record
CVE-2014-7933
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Updated
2026-11-02
CVE List No score

Use-after-free vulnerability in the matroska_read_seek function in libavformat/matroskadec.c in FFmpeg before 2.5.1, as used in Google Chrome before 40.0.2214.91, allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted Matroska file that triggers improper maintenance of tracks data.

Record
CVE-2014-7933
Updated
2026-11-02
EUVDEUVD-2014-7783 No score

Use-after-free vulnerability in the matroska_read_seek function in libavformat/matroskadec.c in FFmpeg before 2.5.1, as used in Google Chrome before 40.0.2214.91, allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted Matroska file that triggers improper maintenance of tracks data.

Record
EUVD-2014-7783
Updated
2026-11-03
GitHub AdvisoriesGHSA-m52w-9gvm-79q5 No score

Use-after-free vulnerability in the matroska_read_seek function in libavformat/matroskadec.c in...

Use-after-free vulnerability in the matroska_read_seek function in libavformat/matroskadec.c in FFmpeg before 2.5.1, as used in Google Chrome before 40.0.2214.91, allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted Matroska file that triggers improper maintenance of tracks data.

Record
GHSA-m52w-9gvm-79q5
Updated
2026-11-02
OSV No score

Use-after-free vulnerability in the matroska_read_seek function in libavformat/matroskadec.c in FFmpeg before 2.5.1, as used in Google Chrome before 40.0.2214.91, allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted Matroska file that triggers improper maintenance of tracks data.

Record
CVE-2014-7933
Updated
2026-11-02
OSVDEBIAN-CVE-2014-7933 No score

Use-after-free vulnerability in the matroska_read_seek function in libavformat/matroskadec.c in FFmpeg before 2.5.1, as used in Google Chrome before 40.0.2214.91, allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted Matroska file that triggers improper maintenance of tracks data.

Record
DEBIAN-CVE-2014-7933
Updated
2026-11-02
Show 4 moreShow less
OSVopenSUSE-SU-2024:10171-1 No score

chromedriver-55.0.2883.75-3.1 on GA media

These are all security issues fixed in the chromedriver-55.0.2883.75-3.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10171-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:12948-1 No score

ungoogled-chromium-113.0.5672.92-1.1 on GA media

These are all security issues fixed in the ungoogled-chromium-113.0.5672.92-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:12948-1
Updated
2026-11-02
OSVUBUNTU-CVE-2014-7933 No score

Use-after-free vulnerability in the matroska_read_seek function in libavformat/matroskadec.c in FFmpeg before 2.5.1, as used in Google Chrome before 40.0.2214.91, allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted Matroska file that triggers improper maintenance of tracks data.

Record
UBUNTU-CVE-2014-7933
Updated
2026-11-02
OSVUSN-2476-1 No score

oxide-qt vulnerabilities

Several memory corruption bugs were discovered in ICU. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service via renderer crash or execute arbitrary code with the privileges of the sandboxed render process. (CVE-2014-7923, CVE-2014-7926)

A use-after-free was discovered in the IndexedDB implementation. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash or execute arbitrary code with the privileges of the user invoking the program. (CVE-2014-7924)

A use-after free was discovered in the WebAudio implementation in Blink. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via renderer crash or execute arbitrary code with the privileges of the sandboxed render process. (CVE-2014-7925)

Several memory corruption bugs were discovered in V8. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service via renderer crash or execute arbitrary code with the privileges of the sandboxed render process. (CVE-2014-7927, CVE-2014-7928, CVE-2014-7931)

Several use-after free bugs were discovered in the DOM implementation in Blink. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service via renderer crash or execute arbitrary code with the privileges of the sandboxed render process. (CVE-2014-7929, CVE-2014-7930, CVE-2014-7932, CVE-2014-7934)

A use-after free was discovered in FFmpeg. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via renderer crash or execute arbitrary code with the privileges of the sandboxed render process. (CVE-2014-7933)

Multiple off-by-one errors were discovered in FFmpeg. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via renderer crash or execute arbitrary code with the privileges of the sandboxed render process. (CVE-2014-7937)

A memory corruption bug was discovered in the fonts implementation. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via renderer crash or execute arbitrary code with the privileges of the sandboxed render process. (CVE-2014-7938)

It was discovered that ICU did not initialize memory for a data structure correctly. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via renderer crash or execute arbitrary code with the privileges of the sandboxed render process. (CVE-2014-7940)

It was discovered that the fonts implementation did not initialize memory for a data structure correctly. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via renderer crash or execute arbitrary code with the privileges of the sandboxed render process. (CVE-2014-7942)

An out-of-bounds read was discovered in Skia. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via renderer crash. (CVE-2014-7943)

An out-of-bounds read was discovered in Blink. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via renderer crash. (CVE-2014-7946)

It was discovered that the AppCache proceeded with caching for SSL sessions even if there is a certificate error. A remote attacker could potentially exploit this by conducting a MITM attack to modify HTML application content. (CVE-2014-7948) …

Record
USN-2476-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
ffmpeg
Debian:12
before 7:2.5.1-1
7:2.5.1-1
ffmpeg
Debian:13
before 7:2.5.1-1
7:2.5.1-1
ffmpeg
Debian:14
before 7:2.5.1-1
7:2.5.1-1
libav
Debian:7
From an advisory covering 6 CVEs
before 6:0.8.17-1, plus listed versions
6:0.8.10-16:0.8.12-16:0.8.13-16:0.8.15-16:0.8.16-1
Show 4 moreShow less
6:0.8.6-16:0.8.7-16:0.8.8-16:0.8.9-1
6:0.8.17-1
chromium-browser
Red Hat:rhel_extras:6
From an advisory covering 29 CVEs
before 0:40.0.2214.91-1.el6_6
0:40.0.2214.91-1.el6_6
chromium-browser-debuginfo
Red Hat:rhel_extras:6
From an advisory covering 29 CVEs
before 0:40.0.2214.91-1.el6_6
0:40.0.2214.91-1.el6_6
chromium-browser
Ubuntu:14.04:LTS
before 40.0.2214.94-0ubuntu0.14.04.1.1068, plus listed versions
29.0.1547.65-0ubuntu231.0.1650.63-0ubuntu1~20131204.132.0.1700.107-0ubuntu1~20140204.977.133.0.1750.152-0ubuntu1~pkg995.134.0.1847.116-0ubuntu2
Show 5 moreShow less
36.0.1985.125-0ubuntu1.14.04.0~pkg102937.0.2062.94-0ubuntu0.14.04.1~pkg104237.0.2062.120-0ubuntu0.14.04.1~pkg104938.0.2125.111-0ubuntu0.14.04.1.106139.0.2171.65-0ubuntu0.14.04.1.1064
40.0.2214.94-0ubuntu0.14.04.1.1068
libav
Ubuntu:14.04:LTS
before 6:9.20-0ubuntu0.14.04.1, plus listed versions
6:0.8.7-1ubuntu26:9.10-1ubuntu16:9.10-1ubuntu26:9.10-1ubuntu56:9.10-1ubuntu6
Show 7 moreShow less
6:9.10-1ubuntu76:9.11-2ubuntu16:9.11-2ubuntu26:9.13-0ubuntu0.14.04.16:9.14-0ubuntu0.14.04.16:9.16-0ubuntu0.14.04.16:9.18-0ubuntu0.14.04.1
6:9.20-0ubuntu0.14.04.1
oxide-qt
Ubuntu:14.04:LTS
before 1.4.2-0ubuntu0.14.04.1, plus listed versions
1.0.0~bzr437-0ubuntu11.0.0~bzr452-0ubuntu11.0.0~bzr475-0ubuntu11.0.0~bzr490-0ubuntu11.0.0~bzr501-0ubuntu1
Show 6 moreShow less
1.0.0~bzr501-0ubuntu21.0.4-0ubuntu0.14.04.11.0.5-0ubuntu0.14.04.11.1.2-0ubuntu0.14.04.11.2.5-0ubuntu0.14.04.11.3.4-0ubuntu0.14.04.1
1.4.2-0ubuntu0.14.04.1
oxide-qt
Ubuntu:14.04:LTS
From an advisory covering 21 CVEs
before 1.4.2-0ubuntu0.14.04.1, plus listed versions
1.0.0~bzr437-0ubuntu11.0.0~bzr452-0ubuntu11.0.0~bzr475-0ubuntu11.0.0~bzr490-0ubuntu11.0.0~bzr501-0ubuntu1
Show 6 moreShow less
1.0.0~bzr501-0ubuntu21.0.4-0ubuntu0.14.04.11.0.5-0ubuntu0.14.04.11.1.2-0ubuntu0.14.04.11.2.5-0ubuntu0.14.04.11.3.4-0ubuntu0.14.04.1
1.4.2-0ubuntu0.14.04.1
chromium
openSUSE:Tumbleweed
From an advisory covering 719 CVEs
before 55.0.2883.75-3.1
55.0.2883.75-3.1
chromium
openSUSE:Tumbleweed
From an advisory covering 2310 CVEs
before 113.0.5672.92-1.1
113.0.5672.92-1.1

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2014-7933 is a high vulnerability (CVSS 7.5) in Ffmpeg, published January 22, 2015. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.80%, the 86th percentile. Fixed in ffmpeg 7:2.5.1-1.

References

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Left out here: 2,288 references and the rest of 1 source description. The JSON record has them.

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