Integer Overflow or Wraparound Affecting libxml2 package, versions *


Severity

Recommended
medium

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.15% (52nd percentile)

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  • Snyk ID SNYK-CENTOS6-LIBXML2-2809279
  • published 6 May 2022
  • disclosed 3 May 2022

How to fix?

There is no fixed version for Centos:6 libxml2.

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.

In libxml2 before 2.9.14, several buffer handling functions in buf.c (xmlBuf*) and tree.c (xmlBuffer*) don't check for integer overflows. This can result in out-of-bounds memory writes. Exploitation requires a victim to open a crafted, multi-gigabyte XML file. Other software using libxml2's buffer functions, for example libxslt through 1.1.35, is affected as well.

References

CVSS Scores

version 3.1
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NVD

6.5 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)
    High
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Red Hat

7.4 high
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SUSE

7.8 high