Use After Free Affecting expat package, versions <2.2.9-1ubuntu0.5


Severity

Recommended
medium

Based on Ubuntu security rating

    Threat Intelligence

    EPSS
    0.56% (78th percentile)

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  • Snyk ID SNYK-UBUNTU2004-EXPAT-3024518
  • published 15 Sep 2022
  • disclosed 14 Sep 2022

How to fix?

Upgrade Ubuntu:20.04 expat to version 2.2.9-1ubuntu0.5 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream expat package and not the expat package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

libexpat before 2.4.9 has a use-after-free in the doContent function in xmlparse.c.

References

CVSS Scores

version 3.1
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NVD

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

SUSE

8.1 high
Expand this section

Red Hat

8.1 high