CVE-2017-16803

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Summary

CVECVE-2017-16803
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-11-13 17:29:00 UTC
Updated2025-04-20 01:37:25 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.0 7.5 HIGH from [email protected]

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

EPSS: 0.006760000 probability, percentile 0.716350000 (date 2026-05-13)

Problem Types: CWE-119 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary7.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
2.0[email protected]Primary5AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Libav Libav 12.0 All All All
Application Libav Libav 12.1 All All All
Application Libav Libav All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Debian -- Security Information -- DSA-4119-1 libav af854a3a-2127-422b-91ae-364da2661108 www.debian.org
Libav CVE-2017-16803 Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
Bug 1098 – crafted Smacker stream causes an OOB access in bitstream.c:build_table() af854a3a-2127-422b-91ae-364da2661108 bugzilla.libav.org Issue Tracking
smacker: add sanity check for length in smacker_decode_tree() · libav/libav@cd4663d · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Issue Tracking
Libav: Multiple vulnerabilities (GLSA 201811-19) — Gentoo security af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 710300 Gentoo Linux Libav Multiple Vulnerabilities (GLSA 201811-19)

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