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Allocation of Resources Without Limits or Throttling Affecting libxml2 package, versions <2.9.4+dfsg1-2.2+deb9u3

Severity

 Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
1.73% (89th percentile)

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  • Snyk IDSNYK-DEBIAN9-LIBXML2-429525
  • published8 Apr 2018
  • disclosed8 Apr 2018
Report a new vulnerability Found a mistake?

Introduced: 8 Apr 2018

CVE-2017-18258  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade Debian:9 libxml2 to version 2.9.4+dfsg1-2.2+deb9u3 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:9 relevant fixed versions and status.

The xz_head function in xzlib.c in libxml2 before 2.9.6 allows remote attackers to cause a denial of service (memory consumption) via a crafted LZMA file, because the decoder functionality does not restrict memory usage to what is required for a legitimate file.