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Algorithmic Complexity Affecting expat package, versions <0:2.0.1-11.el6_2

Severity

 Recommended
0.0
medium
0
10

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.42% (75th percentile)

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  • Snyk ID SNYK-CENTOS6-EXPAT-2056588
  • published 26 Jul 2021
  • disclosed 3 Mar 2012
Report a new vulnerability Found a mistake?

Introduced: 3 Mar 2012

CVE-2012-0876 Open this link in a new tab
CWE-407 Open this link in a new tab

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.

The XML parser (xmlparse.c) in expat before 2.1.0 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via an XML file with many identifiers with the same value.

References

CVSS Scores

version 3.1
Expand this section

NVD

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
Expand this section

Red Hat

5.3 medium