Missing Release of Resource after Effective Lifetime Affecting python3-libxml2 package, versions <0:2.9.7-8.el8


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.43% (75th percentile)

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  • Snyk ID SNYK-RHEL8-PYTHON3LIBXML2-3851574
  • published 26 Jul 2021
  • disclosed 8 Jan 2020

How to fix?

Upgrade RHEL:8 python3-libxml2 to version 0:2.9.7-8.el8 or higher.
This issue was patched in RHSA-2020:4479.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-libxml2 package and not the python3-libxml2 package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

xmlParseBalancedChunkMemoryRecover in parser.c in libxml2 before 2.9.10 has a memory leak related to newDoc->oldNs.

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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Red Hat

7.5 high
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SUSE

5.3 medium