Out-of-bounds Write Affecting libass package, versions *


Severity

Recommended
medium

Based on Ubuntu security rating

    Threat Intelligence

    EPSS
    0.11% (45th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk ID SNYK-UBUNTU1404-LIBASS-1320353
  • published 21 Jul 2021
  • disclosed 20 Jul 2021

How to fix?

There is no fixed version for Ubuntu:14.04 libass.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libass package and not the libass package as distributed by Ubuntu. See How to fix? for Ubuntu:14.04 relevant fixed versions and status.

libass 0.15.x before 0.15.1 has a heap-based buffer overflow in decode_chars (called from decode_font and process_text) because the wrong integer data type is used for subtraction.

CVSS Scores

version 3.1
Expand this section

NVD

7.8 high
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
Expand this section

SUSE

7.5 high