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01 Record

CVE-2014-7933

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

UnratedPUBLISHEDCNA: Chrome
CNA base scoreUnratedNo CNA CVSS vector

02 Description

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

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
2.80% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 86.2% of scored records. A rank, not a probability.
NVD base score
The NVD has published no score for this record
NVD CVSS vector
No NVD score to derive
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2015-01-22 22:00Z11 YR AGO
Last updated
2024-08-06 13:03Z2 YR AGO
Reserved
2014-10-06
Assigning CNA
Chrome
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
Data version
5.1
Document digest
b0d89f8ff58c67922881b8d25866c389c2b919ccfdf15d885ec7f9c51d58a0c0

05 Affected products

VendorProductVersionsPlatforms
ffmpegffmpegNot specified—
googlechromeNot specified—
redhatrhel_extrasNot specified—

06 References

07 Fixed in

Debian 12

  • ffmpeg
    Fixed in 7:2.5.1-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • ffmpeg
    Fixed in 7:2.5.1-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • ffmpeg
    Fixed in 7:2.5.1-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 14.04 LTS

  • chromium-browser
    Fixed in 40.0.2214.94-0ubuntu0.14.04.1.1068
  • libav
    Fixed in 6:9.20-0ubuntu0.14.04.1
  • oxide-qt
    Fixed in 1.4.2-0ubuntu0.14.04.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.