Amazon Linux 2023 Security Advisory: ALAS-2023-321
Advisory Release Date: 2023-08-31 21:43 Pacific
Advisory Updated Date: 2023-09-07 21:18 Pacific
Severity:
Medium
Issue Overview:
lib/kadm5/kadm_rpc_xdr.c in MIT Kerberos 5 (aka krb5) before 1.20.2 and 1.21.x before 1.21.1 frees an uninitialized pointer. A remote authenticated user can trigger a kadmind crash. This occurs because _xdr_kadm5_principal_ent_rec does not validate the relationship between n_key_data and the key_data array count. (CVE-2023-36054)
kdc/do_tgs_req.c in MIT Kerberos 5 (aka krb5) 1.21 before 1.21.2 has a double free that is reachable if an authenticated user can trigger an authorization-data handling failure. Incorrect data is copied from one ticket to another. (CVE-2023-39975)
Affected Packages:
krb5
Issue Correction:
Run dnf update krb5 --releasever 2023.1.20230906 to update your system.
New Packages:
aarch64:
krb5-pkinit-debuginfo-1.21-3.amzn2023.0.3.aarch64
krb5-libs-debuginfo-1.21-3.amzn2023.0.3.aarch64
libkadm5-debuginfo-1.21-3.amzn2023.0.3.aarch64
krb5-pkinit-1.21-3.amzn2023.0.3.aarch64
krb5-server-ldap-1.21-3.amzn2023.0.3.aarch64
krb5-debuginfo-1.21-3.amzn2023.0.3.aarch64
krb5-server-1.21-3.amzn2023.0.3.aarch64
krb5-server-debuginfo-1.21-3.amzn2023.0.3.aarch64
krb5-server-ldap-debuginfo-1.21-3.amzn2023.0.3.aarch64
libkadm5-1.21-3.amzn2023.0.3.aarch64
krb5-workstation-debuginfo-1.21-3.amzn2023.0.3.aarch64
krb5-debugsource-1.21-3.amzn2023.0.3.aarch64
krb5-devel-1.21-3.amzn2023.0.3.aarch64
krb5-libs-1.21-3.amzn2023.0.3.aarch64
krb5-workstation-1.21-3.amzn2023.0.3.aarch64
src:
krb5-1.21-3.amzn2023.0.3.src
x86_64:
libkadm5-debuginfo-1.21-3.amzn2023.0.3.x86_64
krb5-pkinit-debuginfo-1.21-3.amzn2023.0.3.x86_64
krb5-server-1.21-3.amzn2023.0.3.x86_64
krb5-server-ldap-1.21-3.amzn2023.0.3.x86_64
krb5-server-ldap-debuginfo-1.21-3.amzn2023.0.3.x86_64
krb5-server-debuginfo-1.21-3.amzn2023.0.3.x86_64
krb5-workstation-debuginfo-1.21-3.amzn2023.0.3.x86_64
libkadm5-1.21-3.amzn2023.0.3.x86_64
krb5-libs-debuginfo-1.21-3.amzn2023.0.3.x86_64
krb5-debuginfo-1.21-3.amzn2023.0.3.x86_64
krb5-debugsource-1.21-3.amzn2023.0.3.x86_64
krb5-devel-1.21-3.amzn2023.0.3.x86_64
krb5-pkinit-1.21-3.amzn2023.0.3.x86_64
krb5-libs-1.21-3.amzn2023.0.3.x86_64
krb5-workstation-1.21-3.amzn2023.0.3.x86_64