Integer Overflow or Wraparound Affecting expat package, versions <2.4.3-r0


Severity

Recommended
0.0
critical
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    1.49% (88th percentile)

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  • Snyk ID SNYK-ALPINE317-EXPAT-3139504
  • published 17 Jan 2022
  • disclosed 10 Jan 2022

How to fix?

Upgrade Alpine:3.17 expat to version 2.4.3-r0 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 Alpine. See How to fix? for Alpine:3.17 relevant fixed versions and status.

defineAttribute in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.

CVSS Scores

version 3.1
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NVD

Recommended
9.8 critical
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
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SUSE

7.5 high
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Red Hat

9.8 critical