PT-2017-9436 · FFmpeg+3 · Libsass+3

Grigorig · Published 2016-10-12 · Updated 2022-05-04 · CVE-2016-7970

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions libass versions prior to 0.13.4

Description The issue is related to a buffer overflow in the calc coeff function in libass/ass blur.c. This allows remote attackers to cause a denial of service via unspecified vectors.

Recommendations For versions prior to 0.13.4, update to version 0.13.4 or later to resolve the issue. As a temporary workaround, consider restricting access to the calc coeff function in libass/ass blur.c until a patch is available.

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

ALT-PU-2019-1158

CVE-2016-7970

MGASA-2016-0341

OPENSUSE-SU-2024:10508-1

SUSE-SU-2016:3107-1

USN-4797-1

Affected Products

Alt Linux

Suse

Ubuntu

Libsass

References · 34

• https://github.com/libass/libass/releases/tag/0.13.4 · Patch
• https://github.com/libass/libass/pull/240/commits/08e754612019ed84d1db0d1fc4f5798248decd75 · Patch
• https://cve.org/CVERecord?id=CVE-2016-7970 · Security Note
• http://openwall.com/lists/oss-security/2016/10/05/2 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2016-7970 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2016-7970 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-7972 · Vendor Advisory
• https://osv.dev/vulnerability/USN-4797-1 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KW6DNERYHPI5Y6SQYU3XKTVSCOWMIHUC · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R7JJ2SGVOX6UQQIRMVC3QACJLKHE2PYN · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-7969 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUOUOK3VULMMZTNSCRFCNPDAPDWAVK7X · Vendor Advisory
• https://advisories.mageia.org/MGASA-2016-0341.html · Security Note
• https://osv.dev/vulnerability/MGASA-2016-0341 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2016-7970 · Vendor Advisory