Improper Input Validation Affecting libxml2 package, versions <2.9.3+dfsg1-1.1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
1.09% (86th percentile)

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  • Snyk IDSNYK-DEBIAN12-LIBXML2-1551582
  • published17 May 2016
  • disclosed17 May 2016

Introduced: 17 May 2016

CVE-2016-3705  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Debian:12 libxml2 to version 2.9.3+dfsg1-1.1 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 Debian. See How to fix? for Debian:12 relevant fixed versions and status.

The (1) xmlParserEntityCheck and (2) xmlParseAttValueComplex functions in parser.c in libxml2 2.9.3 do not properly keep track of the recursion depth, which allows context-dependent attackers to cause a denial of service (stack consumption and application crash) via a crafted XML document containing a large number of nested entity references.

CVSS Scores

version 3.1