XML External Entity (XXE) Injection Affecting expat package, versions <2.6.3-r0


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.05% (19th percentile)

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  • Snyk ID SNYK-ALPINE320-EXPAT-7908300
  • published 5 Sep 2024
  • disclosed 30 Aug 2024

How to fix?

Upgrade Alpine:3.20 expat to version 2.6.3-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:3.20 relevant fixed versions and status.

An issue was discovered in libexpat before 2.6.3. xmlparse.c does not reject a negative length for XML_ParseBuffer.

CVSS Scores

version 3.1
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NVD

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

9.4 critical
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SUSE

6.2 medium