Memory Leak Affecting expat package, versions <0:2.0.1-11.el6_2


Severity

Recommended
medium

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.91% (83rd percentile)

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  • Snyk ID SNYK-CENTOS6-EXPAT-2056633
  • published 26 Jul 2021
  • disclosed 3 Mar 2012

How to fix?

Upgrade Centos:6 expat to version 0:2.0.1-11.el6_2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream expat package and not the expat package as distributed by Centos. See How to fix? for Centos:6 relevant fixed versions and status.

Memory leak in the poolGrow function in expat/lib/xmlparse.c in expat before 2.1.0 allows context-dependent attackers to cause a denial of service (memory consumption) via a large number of crafted XML files that cause improperly-handled reallocation failures when expanding entities.

CVSS Scores

version 3.1
Expand this section

NVD

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