CVE-2025-3576
Krb5: kerberos rc4-hmac-md5 checksum vulnerability enabling message spoofing via md5 collisions
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Krb5: kerberos rc4-hmac-md5 checksum vulnerability enabling message spoofing via md5 collisions
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.
Reserved 2025-04-14 | Published 2025-04-15 | Updated 2025-04-17 | Assigner redhat| 2025-04-14: | Reported to Red Hat. |
| 2025-04-15: | Made public. |
access.redhat.com/security/cve/CVE-2025-3576
bugzilla.redhat.com/show_bug.cgi?id=2359465 (RHBZ#2359465)
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