HTTP Response Splitting Affecting mod_session package, versions <0:2.4.53-7.el9_1.1


Severity

Recommended
0.0
medium
0
10

Based on AlmaLinux security rating

    Threat Intelligence

    EPSS
    0.09% (38th percentile)

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  • Snyk ID SNYK-ALMALINUX9-MODSESSION-5608796
  • published 28 May 2023
  • disclosed 28 Feb 2023

How to fix?

Upgrade AlmaLinux:9 mod_session to version 0:2.4.53-7.el9_1.1 or higher.
This issue was patched in ALSA-2023:0970.

NVD Description

Note: Versions mentioned in the description apply only to the upstream mod_session package and not the mod_session package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

Prior to Apache HTTP Server 2.4.55, a malicious backend can cause the response headers to be truncated early, resulting in some headers being incorporated into the response body. If the later headers have any security purpose, they will not be interpreted by the client.

CVSS Scores

version 3.1
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NVD

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

7.4 high
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Red Hat

5.3 medium