CVE-2021-33193 Affecting apache2-devel package, versions <2.4.43-3.25.1


Severity

Recommended
0.0
critical
0
10

Based on SUSE Linux Enterprise Server security rating

    Threat Intelligence

    EPSS
    0.13% (48th percentile)

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  • Snyk ID SNYK-SLES153-APACHE2DEVEL-2664321
  • published 14 Apr 2022
  • disclosed 3 Sep 2021

How to fix?

Upgrade SLES:15.3 apache2-devel to version 2.4.43-3.25.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream apache2-devel package and not the apache2-devel package as distributed by SLES. See How to fix? for SLES:15.3 relevant fixed versions and status.

A crafted method sent through HTTP/2 will bypass validation and be forwarded by mod_proxy, which can lead to request splitting or cache poisoning. This issue affects Apache HTTP Server 2.4.17 to 2.4.48.

References

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)
    High
  • Availability (A)
    None
Expand this section

SUSE

9.1 critical
Expand this section

Red Hat

7.5 high