Resource Exhaustion Affecting python3-libxml2 package, versions <0:2.9.7-9.el8_4.2


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.08% (36th percentile)

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  • Snyk ID SNYK-RHEL8-PYTHON3LIBXML2-4062431
  • published 26 Jul 2021
  • disclosed 13 May 2021

How to fix?

Upgrade RHEL:8 python3-libxml2 to version 0:2.9.7-9.el8_4.2 or higher.
This issue was patched in RHSA-2021:2569.

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.

A flaw was found in libxml2. Exponential entity expansion attack its possible bypassing all existing protection mechanisms and leading to denial of service.

CVSS Scores

version 3.1
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NVD

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

6.5 medium
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SUSE

6.5 medium