CVE-2015-6818

HIGH

Description

The decode_ihdr_chunk function in libavcodec/pngdec.c in FFmpeg before 2.7.2 does not enforce uniqueness of the IHDR (aka image header) chunk in a PNG image, which allows remote attackers to cause a denial of service (out-of-bounds array access) or possibly have unspecified other impact via a crafted image with two or more of these chunks.

References

http://ffmpeg.org/security.html

http://git.videolan.org/?p=ffmpeg.git;a=commit;h=47f4e2d8960ca756ca153ab8e3e93d80449b8c91

http://www.securitytracker.com/id/1033483

http://www.ubuntu.com/usn/USN-2944-1

https://lists.debian.org/debian-lts-announce/2018/12/msg00009.html

Details

Source: MITRE

Published: 2015-09-06

Updated: 2018-12-21

Type: CWE-17

Risk Information

CVSS v2.0

Base Score: 7.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 10

Severity: HIGH