In libass 0.14.0, the `ass_outline_construct`'s call to `outline_stroke` causes a signed integer overflow.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-032348 advisory.

    In libass 0.14.0, the `ass_outline_construct`'s call to `outline_stroke` causes a signed integer overflow.

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - In libass 0.14.0, the `ass_outline_construct`'s call to `outline_stroke` causes a signed integer overflow.
    (CVE-2020-26682)

Note that Nessus relies on the presence of the package as reported by the vendor.

This update for libass fixes the following issues :

CVE-2020-26682: Fixed a signed integer overflow in the call to outline_stroke() (bsc#1177862).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for libass fixes the following issues :

  - CVE-2020-26682: Fixed a signed integer overflow in the     call to outline_stroke() (bsc#1177862).

This update was imported from the SUSE:SLE-15:Update update project.

The remote host is affected by the vulnerability described in GLSA-202012-12 (libass: User-assisted execution of arbitrary code)

    It was discovered that libass did not properly handle Advanced       Substation Alpha/Substation Alpha subtitle format files.
  Impact :

    A remote attacker could entice a user to process an a specially crafted       subtitle format file using an application linked against libass, possibly       resulting in execution of arbitrary code with the privileges of the       process or a Denial of Service condition.
  Workaround :

    There is no known workaround at this time.

ID	Name	Product	Family	Type	Severity
341250	Unity Linux 20.1050e / 20.1060e / 20.1070-8ae / 20.1070e Security Update: libass (UTSA-2026-032348)	Nessus	Unity Linux Local Security Checks	Local	high
259880	Linux Distros Unpatched Vulnerability : CVE-2020-26682	Nessus	Misc.	Local	high
148177	SUSE SLED15 / SLES15 Security Update : libass (SUSE-SU-2021:0936-1)	Nessus	SuSE Local Security Checks	Local	high
148153	openSUSE Security Update : libass (openSUSE-2021-472)	Nessus	SuSE Local Security Checks	Local	high
144591	GLSA-202012-12 : libass: User-assisted execution of arbitrary code	Nessus	Gentoo Local Security Checks	Local	high

Detections

Analytics

CVE-2020-26682

high

Tenable Plugins

high

high

high

high

high