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

0.0
medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Availability High

    Threat Intelligence

    EPSS 1.73% (88th percentile)
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NVD
6.5 medium
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Red Hat
3.5 low

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  • Snyk ID SNYK-DEBIAN9-LIBXML2-429525
  • published 8 Apr 2018
  • disclosed 8 Apr 2018
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Introduced: 8 Apr 2018

CVE-2017-18258 Open this link in a new tab
CWE-770 Open this link 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.