CVE-2017-16803

MEDIUM

Description

In Libav through 11.11 and 12.x through 12.1, the smacker_decode_tree function in libavcodec/smacker.c does not properly restrict tree recursion, which allows remote attackers to cause a denial of service (bitstream.c:build_table() out-of-bounds read and application crash) via a crafted Smacker stream.

References

http://www.securityfocus.com/bid/101882

https://bugzilla.libav.org/show_bug.cgi?id=1098

https://github.com/libav/libav/commit/cd4663dc80323ba64989d0c103d51ad3ee0e9c2f

https://security.gentoo.org/glsa/201811-19

https://www.debian.org/security/2018/dsa-4119

Details

Source: MITRE

Published: 2017-11-13

Updated: 2018-11-27

Type: CWE-119

Risk Information

CVSS v2.0

Base Score: 5

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

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3.0

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH