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CVE-2017-16803

Published: 13 November 2017

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.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
libav
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

focal Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

mantic Does not exist

trusty Needed

upstream
Released (6:11.12-1~deb8u1)
xenial Does not exist

zesty Does not exist

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H