Resource Exhaustion Affecting libxml2-python package, versions <0:2.9.1-5.el7_0.1


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.75% (81st percentile)

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  • Snyk IDSNYK-RHEL7-LIBXML2PYTHON-5031558
  • published26 Jul 2021
  • disclosed16 Oct 2014

Introduced: 16 Oct 2014

CVE-2014-3660  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade RHEL:7 libxml2-python to version 0:2.9.1-5.el7_0.1 or higher.
This issue was patched in RHSA-2014:1655.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libxml2-python package and not the libxml2-python package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

parser.c in libxml2 before 2.9.2 does not properly prevent entity expansion even when entity substitution has been disabled, which allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted XML document containing a large number of nested entity references, a variant of the "billion laughs" attack.

CVSS Scores

version 3.1