CVE-2016-7969

Name: CVE-2016-7969
Creator: NVD / NIST
Published: 2017-03-03T16:59:00.56+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 4.23%

Last modified Jun 17, 2026

CVE-2016-7969 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. The wrap_lines_smart function in ass_render.c in libass before 0.13.4 allows remote attackers to cause a denial of service (out-of-bounds read) via unspecified vectors, related to "0/3 line wrapping equalization.". EPSS estimates a 4.23% chance of exploitation in the next 30 days.

Description

The wrap_lines_smart function in ass_render.c in libass before 0.13.4 allows remote attackers to cause a denial of service (out-of-bounds read) via unspecified vectors, related to "0/3 line wrapping equalization."

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

4.23%

89.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Opensuse	Leap	42.1
Opensuse	Opensuse	13.2
Fedoraproject	Fedora	23
Fedoraproject	Fedora	24
Fedoraproject	Fedora	25
Libass Project	Libass	<= 0.13.3

References

http://lists.opensuse.org/opensuse-updates/2016-12/msg00068.htmlThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/05/2Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/93358Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1381960Issue Tracking, Patch
https://github.com/libass/libass/commit/f4f48950788b91c6a30029cc28a240b834713ea7Patch, Vendor Advisory
https://github.com/libass/libass/releases/tag/0.13.4Patch, Release Notes, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KW6DNERYHPI5Y6SQYU3XKTVSCOWMIHUC/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R7JJ2SGVOX6UQQIRMVC3QACJLKHE2PYN/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUOUOK3VULMMZTNSCRFCNPDAPDWAVK7X/
https://security.gentoo.org/glsa/201702-25Patch, Third Party Advisory, VDB Entry
http://lists.opensuse.org/opensuse-updates/2016-12/msg00068.htmlThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/05/2Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/93358Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1381960Issue Tracking, Patch
https://github.com/libass/libass/commit/f4f48950788b91c6a30029cc28a240b834713ea7Patch, Vendor Advisory
https://github.com/libass/libass/releases/tag/0.13.4Patch, Release Notes, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KW6DNERYHPI5Y6SQYU3XKTVSCOWMIHUC/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R7JJ2SGVOX6UQQIRMVC3QACJLKHE2PYN/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUOUOK3VULMMZTNSCRFCNPDAPDWAVK7X/
https://security.gentoo.org/glsa/201702-25Patch, Third Party Advisory, VDB Entry

Timeline

Published: Mar 3, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-7969?

How severe is CVE-2016-7969?

CVE-2016-7969 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 4.23% probability of exploitation in the next 30 days.

How do I fix CVE-2016-7969?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-7969?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST