Vulnerability Monitor

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CVE-2017-16803

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.

Published

2017-11-13T17:29:00.567

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 7.5 (HIGH)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-119

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	libav	libav	≤ 11.11	Yes
Application	libav	libav	12.0	Yes
Application	libav	libav	12.1	Yes

References

http://www.securityfocus.com/bid/101882 Third Party Advisory, VDB Entry ([email protected])
https://bugzilla.libav.org/show_bug.cgi?id=1098 Issue Tracking ([email protected])
https://github.com/libav/libav/commit/cd4663dc80323ba64989d0c103d51ad3ee0e9c2f Issue Tracking ([email protected])
https://security.gentoo.org/glsa/201811-19 ([email protected])
https://www.debian.org/security/2018/dsa-4119 ([email protected])
http://www.securityfocus.com/bid/101882 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.libav.org/show_bug.cgi?id=1098 Issue Tracking (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/libav/libav/commit/cd4663dc80323ba64989d0c103d51ad3ee0e9c2f Issue Tracking (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/201811-19 (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2018/dsa-4119 (af854a3a-2127-422b-91ae-364da2661108)