Vulnerability CVE-2019-11338
Published: 2019-04-18   Modified: 2019-04-19

Description:
libavcodec/hevcdec.c in FFmpeg 4.1.2 mishandles detection of duplicate first slices, which allows remote attackers to cause a denial of service (NULL pointer dereference and out-of-array access) or possibly have unspecified other impact via crafted HEVC data.

Type:

CWE-476

 (NULL Pointer Dereference)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.4/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Ffmpeg -> Ffmpeg 

 References:
http://www.securityfocus.com/bid/108034
https://github.com/FFmpeg/FFmpeg/commit/54655623a82632e7624714d7b2a3e039dc5faa7e
https://lists.debian.org/debian-lts-announce/2019/05/msg00043.html
https://seclists.org/bugtraq/2019/May/60
https://usn.ubuntu.com/3967-1/
https://www.debian.org/security/2019/dsa-4449
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