This update for krb5 fixes the following issues:
- CVE-2026-107708: Denial of Service via malformed PAC in S4U2Proxy requests (bsc#1284816).
- CVE-2026-107778: Denial of Service via crafted forwarded credentials (bsc#1284817).
This update for krb5 fixes the following issues:
- CVE-2025-3576: weakness in the MD5 checksum design allows for spoofing of GSSAPI-protected messages that are using
RC4-HMAC-MD5 (bsc#1241219).
Krb5 as very old protocol supported quite a number of ciphers
that are not longer up to current cryptographic standards.
To avoid problems with those, SUSE has by default now disabled
those alorithms.
The following algorithms have been removed from valid krb5 enctypes:
- des3-cbc-sha1
- arcfour-hmac-md5
To reenable those algorithms, you can use allow options in krb5.conf:
[libdefaults]
allow_des3 = true
allow_rc4 = true
to reenable them.
This update for krb5 fixes the following issues:
- CVE-2025-24528: Fixed out-of-bounds write caused by overflow when calculating ulog block size can lead to process crash (bsc#1236619).
This update for krb5 fixes the following issues:
- CVE-2024-37370: Fixed confidential GSS krb5 wrap tokens with invalid fields were errouneously accepted (bsc#1227186).
- CVE-2024-37371: Fixed invalid memory read when processing message tokens with invalid length fields (bsc#1227187).
This update for krb5 fixes the following issues:
- CVE-2024-26458: Fixed memory leak at /krb5/src/lib/rpc/pmap_rmt.c (bsc#1220770).
- CVE-2024-26461: Fixed memory leak at /krb5/src/lib/gssapi/krb5/k5sealv3.c (bsc#1220771).
- CVE-2024-26462: Fixed memory leak at /krb5/src/kdc/ndr.c (bsc#1220772).