Use After Free Affecting apache2 package, versions <2.4.41-r0


Severity

Recommended
0.0
critical
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.82% (83rd percentile)

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  • Snyk ID SNYK-ALPINE318-APACHE2-5511432
  • published 15 Aug 2019
  • disclosed 26 Sep 2019

How to fix?

Upgrade Alpine:3.18 apache2 to version 2.4.41-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream apache2 package and not the apache2 package as distributed by Alpine. See How to fix? for Alpine:3.18 relevant fixed versions and status.

In Apache HTTP Server 2.4.18-2.4.39, using fuzzed network input, the http/2 session handling could be made to read memory after being freed, during connection shutdown.

References

CVSS Scores

version 3.1
Expand this section

NVD

Recommended
9.1 critical
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    None
  • Availability (A)
    High