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 Details
- CVSS 3.1 Base Score: 5.9
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | alma-upgrade-krb5-develalma-upgrade-krb5-libsalma-upgrade-krb5-pkinitalma-upgrade-krb5-serveralma-upgrade-krb5-server-ldapalma-upgrade-krb5-workstationalma-upgrade-libkadm5 | Jun 4, 2025 | Apr 15, 2025 | |
| Amazon Linux Ami 2 | amazon-linux-ami-2-upgrade-krb5-debuginfoamazon-linux-ami-2-upgrade-krb5-develamazon-linux-ami-2-upgrade-krb5-libsamazon-linux-ami-2-upgrade-krb5-pkinitamazon-linux-ami-2-upgrade-krb5-serveramazon-linux-ami-2-upgrade-krb5-server-ldapamazon-linux-ami-2-upgrade-krb5-workstationamazon-linux-ami-2-upgrade-libkadm5 | May 20, 2026 | May 20, 2026 | |
| Amazon_linux_2023 | amazon-linux-2023-upgrade-krb5-debuginfoamazon-linux-2023-upgrade-krb5-debugsourceamazon-linux-2023-upgrade-krb5-develamazon-linux-2023-upgrade-krb5-libsamazon-linux-2023-upgrade-krb5-libs-debuginfoamazon-linux-2023-upgrade-krb5-pkinitamazon-linux-2023-upgrade-krb5-pkinit-debuginfoamazon-linux-2023-upgrade-krb5-serveramazon-linux-2023-upgrade-krb5-server-debuginfoamazon-linux-2023-upgrade-krb5-server-ldapamazon-linux-2023-upgrade-krb5-server-ldap-debuginfoamazon-linux-2023-upgrade-krb5-workstationamazon-linux-2023-upgrade-krb5-workstation-debuginfoamazon-linux-2023-upgrade-libkadm5amazon-linux-2023-upgrade-libkadm5-debuginfo | Sep 9, 2025 | Apr 15, 2025 | |
| Debian | debian-upgrade-krb5 | May 15, 2025 | Apr 15, 2025 | |
| Huawei Euleros 2_0_sp10 | huawei-euleros-2_0_sp10-upgrade-krb5huawei-euleros-2_0_sp10-upgrade-krb5-clienthuawei-euleros-2_0_sp10-upgrade-krb5-libshuawei-euleros-2_0_sp10-upgrade-krb5-server | Nov 12, 2025 | Oct 10, 2025 | |
| Huawei Euleros 2_0_sp11 | huawei-euleros-2_0_sp11-upgrade-krb5huawei-euleros-2_0_sp11-upgrade-krb5-clienthuawei-euleros-2_0_sp11-upgrade-krb5-libshuawei-euleros-2_0_sp11-upgrade-krb5-server | Oct 14, 2025 | Oct 10, 2025 | |
| Huawei Euleros 2_0_sp12 | huawei-euleros-2_0_sp12-upgrade-krb5huawei-euleros-2_0_sp12-upgrade-krb5-clienthuawei-euleros-2_0_sp12-upgrade-krb5-libshuawei-euleros-2_0_sp12-upgrade-krb5-server | Nov 12, 2025 | Oct 10, 2025 | |
| Huawei Euleros 2_0_sp13 | huawei-euleros-2_0_sp13-upgrade-krb5huawei-euleros-2_0_sp13-upgrade-krb5-clienthuawei-euleros-2_0_sp13-upgrade-krb5-libshuawei-euleros-2_0_sp13-upgrade-krb5-server | Oct 24, 2025 | Oct 10, 2025 | |
| Nutanix Ahv | nutanix-ahv-upgrade-latest | Jun 5, 2026 | Aug 22, 2025 | |
| Oracle_linux | — | oracle-linux-upgrade-krb5-develoracle-linux-upgrade-krb5-libsoracle-linux-upgrade-krb5-pkinitoracle-linux-upgrade-krb5-serveroracle-linux-upgrade-krb5-server-ldaporacle-linux-upgrade-krb5-workstationoracle-linux-upgrade-libkadm5 | Jun 4, 2025 | Apr 15, 2025 |
| Redhat_linux | no-fix-redhat-rpm-packageredhat-upgrade-krb5-debuginforedhat-upgrade-krb5-debugsourceredhat-upgrade-krb5-develredhat-upgrade-krb5-devel-debuginforedhat-upgrade-krb5-libsredhat-upgrade-krb5-libs-debuginforedhat-upgrade-krb5-pkinitredhat-upgrade-krb5-pkinit-debuginforedhat-upgrade-krb5-serverredhat-upgrade-krb5-server-debuginforedhat-upgrade-krb5-server-ldapredhat-upgrade-krb5-server-ldap-debuginforedhat-upgrade-krb5-workstationredhat-upgrade-krb5-workstation-debuginforedhat-upgrade-libkadm5redhat-upgrade-libkadm5-debuginfo | Jun 5, 2025 | Apr 15, 2025 | |
| Rocky_linux | rocky-upgrade-krb5-debuginforocky-upgrade-krb5-debugsourcerocky-upgrade-krb5-develrocky-upgrade-krb5-devel-debuginforocky-upgrade-krb5-libsrocky-upgrade-krb5-libs-debuginforocky-upgrade-krb5-pkinitrocky-upgrade-krb5-pkinit-debuginforocky-upgrade-krb5-serverrocky-upgrade-krb5-server-debuginforocky-upgrade-krb5-server-ldaprocky-upgrade-krb5-server-ldap-debuginforocky-upgrade-krb5-workstationrocky-upgrade-krb5-workstation-debuginforocky-upgrade-libkadm5rocky-upgrade-libkadm5-debuginfo | Jul 31, 2025 | Jul 29, 2025 | |
| Suse | — | suse-upgrade-krb5suse-upgrade-krb5-32bitsuse-upgrade-krb5-clientsuse-upgrade-krb5-develsuse-upgrade-krb5-devel-32bitsuse-upgrade-krb5-docsuse-upgrade-krb5-plugin-kdb-ldapsuse-upgrade-krb5-plugin-preauth-otpsuse-upgrade-krb5-plugin-preauth-pkinitsuse-upgrade-krb5-plugin-preauth-spakesuse-upgrade-krb5-server | Oct 22, 2025 | Jun 4, 2025 |
| Ubuntu | ubuntu-pro-upgrade-libk5crypto3ubuntu-pro-upgrade-libkrb5-3ubuntu-upgrade-libk5crypto3ubuntu-upgrade-libkrb5-3 | May 29, 2025 | Apr 15, 2025 |
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