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 (5)
Core 5
Core References
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2018/dsa-4119
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/201811-19
Issue Tracking x_refsource_confirm
https://bugzilla.libav.org/show_bug.cgi?id=1098
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/101882
Issue Tracking x_refsource_confirm
https://github.com/libav/libav/commit/cd4663dc80323ba64989d0c103d51ad3ee0e9c2f
Scores
CVSS v3
7.5
EPSS
0.0068
EPSS Percentile
71.5%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-119
Status
published
Products (3)
libav/libav
12.0
libav/libav
12.1
libav/libav
< 11.11
Published
Nov 13, 2017
Tracked Since
Feb 18, 2026