Reversible One-Way Hash Affecting krb5 package, versions <1.20.1-2+deb12u4


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.35% (28th percentile)

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  • Snyk IDSNYK-ECHOLATEST-KRB5-19643716
  • published8 Sept 2026
  • 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 Echo:latest krb5 to version 1.20.1-2+deb12u4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream krb5 package and not the krb5 package as distributed by Echo. See How to fix? for Echo:latest 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