← Vulnerability feed

Vulnerability record · CVE-2017-16803 · published 13 November 2017

CVE-2017-16803: Libav memory buffer overflow vulnerability

Libav · Libav

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.

7.5 CVSS 3.0 High EPSS 3.0% · top 13.0% CWE-119 · Memory buffer overflow
7.5CVSS 3.0 base score, v2 5.0
3.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
10References
17 Jun 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/101882 Third Party AdvisoryVDB Entry
https://bugzilla.libav.org/show_bug.cgi?id=1098 Issue Tracking
https://github.com/libav/libav/commit/cd4663dc80323ba64989d0c103d51ad3ee0e9c2f Issue Tracking
https://security.gentoo.org/glsa/201811-19
https://www.debian.org/security/2018/dsa-4119
http://www.securityfocus.com/bid/101882 Third Party AdvisoryVDB Entry
https://bugzilla.libav.org/show_bug.cgi?id=1098 Issue Tracking
https://github.com/libav/libav/commit/cd4663dc80323ba64989d0c103d51ad3ee0e9c2f Issue Tracking
https://security.gentoo.org/glsa/201811-19
https://www.debian.org/security/2018/dsa-4119

Track CVE-2017-16803 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2014-3984Libav vulnerabilityMultiple unspecified vulnerabilities in Libav before 0.8.12 allow remote attackers to have unknown impact and vectors.EPSS 4.0%10.0CVE-2011-3937Ffmpeg vulnerabilityThe H.263 codec (libavcodec/h263dec.c) in FFmpeg 0.7.x before 0.7.12, 0.8.x before 0.8.11, and unspecified versions before 0.10, and in Libav 0.5.x b…EPSS 2.3%10.0CVE-2012-5144Canonical ubuntu linux memory buffer overflow vulnerabilityGoogle Chrome before 23.0.1271.97, and Libav 0.7.x before 0.7.7 and 0.8.x before 0.8.5, do not properly perform AAC decoding, which allows remote att…EPSS 3.4%10.0CVE-2012-2800Libav vulnerabilityUnspecified vulnerability in the ff_ivi_process_empty_tile function in libavcodec/ivi_common.c in FFmpeg before 0.11, and Libav 0.7.x before 0.7.7 an…EPSS 2.9%10.0CVE-2012-2797Ffmpeg vulnerabilityUnspecified vulnerability in the decode_frame_mp3on4 function in libavcodec/mpegaudiodec.c in FFmpeg before 0.11 and Libav 0.8.x before 0.8.5 has unk…EPSS 2.6%10.0CVE-2012-2803Libav vulnerabilityDouble free vulnerability in the mpeg_decode_frame function in libavcodec/mpeg12.c in FFmpeg before 0.11, and Libav 0.7.x before 0.7.7 and 0.8.x befo…EPSS 3.3%10.0CVE-2012-2801Libav vulnerabilityUnspecified vulnerability in libavcodec/avs.c in FFmpeg before 0.11, and Libav 0.7.x before 0.7.7 and 0.8.x before 0.8.4, has unknown impact and atta…EPSS 3.0%10.0CVE-2012-2798Libav vulnerabilityUnspecified vulnerability in the decode_dds1 function in libavcodec/dfa.c in FFmpeg before 0.11, and Libav 0.7.x before 0.7.7 and 0.8.x before 0.8.4,…EPSS 2.9%

Source: NIST National Vulnerability Database (record CVE-2017-16803), CISA KEV, FIRST EPSS (scores of 2026-10-06). This page is refreshed as NVD updates the record.