Use After Free Affecting expat package, versions <0:2.1.0-15.amzn2.0.1


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating

    Threat Intelligence

    EPSS
    0.56% (79th percentile)

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  • Snyk ID SNYK-AMZN2-EXPAT-3110309
  • published 9 Nov 2022
  • disclosed 14 Sep 2022

How to fix?

Upgrade Amazon-Linux:2 expat to version 0:2.1.0-15.amzn2.0.1 or higher.
This issue was patched in ALAS2-2022-1877.

NVD Description

Note: Versions mentioned in the description apply only to the upstream expat package and not the expat package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 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
Expand this section

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

Red Hat

8.1 high
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SUSE

8.1 high