Reversible One-Way Hash Affecting krb5 package, versions <0:1.21.1-8.el9_6


Severity

Recommended
0.0
medium
0
10

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.08% (24th percentile)

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  • Snyk IDSNYK-ROCKY9-KRB5-13290982
  • published5 Oct 2025
  • disclosed15 Apr 2025

Introduced: 15 Apr 2025

CVE-2025-3576  (opens in a new tab)
CWE-328  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:9 krb5 to version 0:1.21.1-8.el9_6 or higher.
This issue was patched in RLSA-2025:9430.

NVD Description

Note: Versions mentioned in the description apply only to the upstream krb5 package and not the krb5 package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:9 relevant fixed versions and status.

A vulnerability in the MIT Kerberos implementation allows GSSAPI-protected messages using RC4-HMAC-MD5 to be spoofed due to weaknesses in the MD5 checksum design. If RC4 is preferred over stronger encryption types, an attacker could exploit MD5 collisions to forge message integrity codes. This may lead to unauthorized message tampering.

CVSS Base Scores

version 3.1