PT-2017-10361 · FFmpeg · Libav

Agostino Sarubbo · Published 2017-03-01 · Updated 2017-03-03 · CVE-2016-9826

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions libav version 11.8

Description The issue allows remote attackers to cause a denial of service, resulting in a crash. This is achieved through vectors involving left shift of a negative value in the libavcodec/ituh263dec.c file.

Recommendations For libav version 11.8, update to a version that contains a fix for this issue to prevent potential denial of service attacks.

Exploit

Fix

Weakness Enumeration

CWE-189

Related Identifiers

CVE-2016-9826

Affected Products

Libav

References · 8

• 🔥 https://github.com/asarubbo/poc/blob/master/00041-libav-leftshift-ituh263dec_c · Exploit
• 🔥 https://blogs.gentoo.org/ago/2016/12/01/libav-multiple-crashes-from-the-undefined-behavior-sanitizer · Exploit
• https://cve.org/CVERecord?id=CVE-2016-9826 · Security Note
• https://ubuntu.com/security/CVE-2016-9826 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2016-9826 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2016-9826 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-9826 · Security Note
• http://securityfocus.com/bid/94732 · Note