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NULL Pointer Dereference Affecting mod_auth_openidc package, versions <0:2.4.9.4-4.el9

Severity

 Recommended
medium

Based on AlmaLinux security rating

    Threat Intelligence

    EPSS
    0.38% (74th percentile)

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  • Snyk ID SNYK-ALMALINUX9-MODAUTHOPENIDC-6061519
  • published 15 Nov 2023
  • disclosed 7 Nov 2023
Report a new vulnerability Found a mistake?

Introduced: 7 Nov 2023

CVE-2023-28625 Open this link in a new tab
CWE-476 Open this link in a new tab

How to fix?

Upgrade AlmaLinux:9 mod_auth_openidc to version 0:2.4.9.4-4.el9 or higher.
This issue was patched in ALSA-2023:6365.

NVD Description

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

mod_auth_openidc is an authentication and authorization module for the Apache 2.x HTTP server that implements the OpenID Connect Relying Party functionality. In versions 2.0.0 through 2.4.13.1, when OIDCStripCookies is set and a crafted cookie supplied, a NULL pointer dereference would occur, resulting in a segmentation fault. This could be used in a Denial-of-Service attack and thus presents an availability risk. Version 2.4.13.2 contains a patch for this issue. As a workaround, avoid using OIDCStripCookies.

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)
    None
  • Availability (A)
    High
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SUSE

7.5 high
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Red Hat

7.5 high