Heap-based Buffer Overflow Affecting libxml2 package, versions <0:2.7.6-21.el6_8.1


Severity

Recommended
high

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.16% (54th percentile)

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  • Snyk ID SNYK-CENTOS6-LIBXML2-2134230
  • published 26 Jul 2021
  • disclosed 23 May 2016

How to fix?

Upgrade Centos:6 libxml2 to version 0:2.7.6-21.el6_8.1 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 Centos. See How to fix? for Centos:6 relevant fixed versions and status.

The xmlParseElementDecl function in parser.c in libxml2 before 2.9.4 allows context-dependent attackers to cause a denial of service (heap-based buffer underread and application crash) via a crafted file, involving xmlParseName.

References

CVSS Scores

version 3.1
Expand this section

Red Hat

4.3 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    Low