Improper Input Validation Affecting libxml2 package, versions <0:2.9.1-6.amzn2.5.8


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.19% (58th percentile)

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  • Snyk IDSNYK-AMZN2-LIBXML2-5496563
  • published4 May 2023
  • disclosed24 Apr 2023

Introduced: 24 Apr 2023

CVE-2023-28484  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 libxml2 to version 0:2.9.1-6.amzn2.5.8 or higher.
This issue was patched in ALAS2-2023-2021.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libxml2 package and not the libxml2 package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

In libxml2 before 2.10.4, parsing of certain invalid XSD schemas can lead to a NULL pointer dereference and subsequently a segfault. This occurs in xmlSchemaFixupComplexType in xmlschemas.c.

CVSS Scores

version 3.1