Loop with Unreachable Exit Condition ('Infinite Loop') Affecting libxml2 package, versions <2.9.8-r1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.15% (52nd percentile)

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  • Snyk IDSNYK-ALPINE320-LIBXML2-7009912
  • published23 May 2024
  • disclosed4 Apr 2018

Introduced: 4 Apr 2018

CVE-2018-9251  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade Alpine:3.20 libxml2 to version 2.9.8-r1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libxml2 package and not the libxml2 package as distributed by Alpine. See How to fix? for Alpine:3.20 relevant fixed versions and status.

The xz_decomp function in xzlib.c in libxml2 2.9.8, if --with-lzma is used, allows remote attackers to cause a denial of service (infinite loop) via a crafted XML file that triggers LZMA_MEMLIMIT_ERROR, as demonstrated by xmllint, a different vulnerability than CVE-2015-8035.