Home/CVE/In FFmpeg before 4.2, avcodec_open2 in libavcodec/utils.c allows a NULL pointer dereference and possibly unspecified oth
CVE

CVE-2019-17539

In FFmpeg before 4.2, avcodec_open2 in libavcodec/utils.c allows a NULL pointer dereference and possibly unspecified oth

In FFmpeg before 4.2, avcodec_open2 in libavcodec/utils.c allows a NULL pointer dereference and possibly unspecified other impact when there is no valid close function pointer.

CRITICAL · CVSS 9.8 EPSS 0.00664
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-476NULL Pointer Dereference
▤

Affected Products & Versions

5
ffmpeg< 3.4.7
ffmpeg>= 4.0 and < 4.0.5
ffmpeg>= 4.1 and < 4.1.5
debian linuxall versions
canonical ubuntu linuxall versions
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD14 Oct 2019 · 02:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

4
suse-csafSUSE-SU-2021:2929-1
suse-csafopenSUSE-SU-2021:2322-1
suse-csafSUSE-SU-2021:2322-1
usnUSN-4431-1
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15733Issue TrackingThird Party Advisory
https://github.com/FFmpeg/FFmpeg/commit/8df6884832ec413cf032dfaa45c23b1c7876670cPatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/01/msg00026.htmlMailing ListThird Party Advisory
https://security.gentoo.org/glsa/202003-65Third Party Advisory
https://usn.ubuntu.com/4431-1/Third Party Advisory
https://www.debian.org/security/2020/dsa-4722Third Party Advisory
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