Description
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.
Problem types
Product status
Any version before 1.22
0:1.21.3-8.el10_0 (rpm) before *
0:1.18.2-32.el8_10 (rpm) before *
0:1.17-19.el8_2.3 (rpm) before *
0:1.18.2-9.el8_4.3 (rpm) before *
0:1.18.2-9.el8_4.3 (rpm) before *
0:1.18.2-16.el8_6.4 (rpm) before *
0:1.18.2-16.el8_6.4 (rpm) before *
0:1.18.2-16.el8_6.4 (rpm) before *
0:1.18.2-26.el8_8.5 (rpm) before *
0:1.18.2-26.el8_8.5 (rpm) before *
0:1.21.1-8.el9_6 (rpm) before *
0:1.21.1-8.el9_6 (rpm) before *
0:1.19.1-16.el9_0.4 (rpm) before *
0:1.20.1-9.el9_2.3 (rpm) before *
0:1.21.1-2.el9_4.2 (rpm) before *
sha256:bd9cb502def3153c193713b56372694cb555a71b38d4fc0fd9d021bccc5602de (rpm) before *
Timeline
| 2025-04-14: | Reported to Red Hat. |
| 2025-04-15: | Made public. |
References
lists.debian.org/debian-lts-announce/2025/05/msg00047.html
access.redhat.com/errata/RHSA-2025:11487 (RHSA-2025:11487)
access.redhat.com/errata/RHSA-2025:13664 (RHSA-2025:13664)
access.redhat.com/errata/RHSA-2025:13777 (RHSA-2025:13777)
access.redhat.com/errata/RHSA-2025:15000 (RHSA-2025:15000)
access.redhat.com/errata/RHSA-2025:15001 (RHSA-2025:15001)
access.redhat.com/errata/RHSA-2025:15002 (RHSA-2025:15002)
access.redhat.com/errata/RHSA-2025:15003 (RHSA-2025:15003)
access.redhat.com/errata/RHSA-2025:15004 (RHSA-2025:15004)
access.redhat.com/errata/RHSA-2025:8411 (RHSA-2025:8411)
access.redhat.com/errata/RHSA-2025:9418 (RHSA-2025:9418)
access.redhat.com/errata/RHSA-2025:9430 (RHSA-2025:9430)
access.redhat.com/security/cve/CVE-2025-3576
bugzilla.redhat.com/show_bug.cgi?id=2359465 (RHBZ#2359465)
web.mit.edu/kerberos/krb5-1.22/krb5-1.22.html
