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Integer Overflow or Wraparound Affecting libxml2 package, versions <0:2.9.7-15.el8_7.1

Severity

 Recommended
medium

Based on Oracle Linux security rating

    Threat Intelligence

    EPSS
    0.5% (77th percentile)

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  • Snyk ID SNYK-ORACLE8-LIBXML2-3231693
  • published 17 Jan 2023
  • disclosed 23 Nov 2022
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Introduced: 23 Nov 2022

CVE-2022-40303 Open this link in a new tab
CWE-190 Open this link in a new tab

How to fix?

Upgrade Oracle:8 libxml2 to version 0:2.9.7-15.el8_7.1 or higher.
This issue was patched in ELSA-2023-0173.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libxml2 package and not the libxml2 package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

An issue was discovered in libxml2 before 2.10.3. When parsing a multi-gigabyte XML document with the XML_PARSE_HUGE parser option enabled, several integer counters can overflow. This results in an attempt to access an array at a negative 2GB offset, typically leading to a segmentation fault.

CVSS Scores

version 3.1
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NVD

7.5 high
  • 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)
    High
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SUSE

7.5 high
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Red Hat

7.5 high