Medium
Canonical Ubuntu
USN-6467-1 fixed a vulnerability in Kerberos. This update provides the corresponding update for Ubuntu 20.04 LTS, Ubuntu 22.04 LTS and Ubuntu 23.04. Original advisory details: Robert Morris discovered that Kerberos did not properly handle memory access when processing RPC data through kadmind, which could lead to the freeing of uninitialized memory. An authenticated remote attacker could possibly use this issue to cause kadmind to crash, resulting in a denial of service. Update Instructions: Run sudo pro fix USN-6467-2
to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: libk5crypto3 – 1.17-6ubuntu4.4 krb5-kpropd – 1.17-6ubuntu4.4 libkdb5-9 – 1.17-6ubuntu4.4 krb5-user – 1.17-6ubuntu4.4 libgssrpc4 – 1.17-6ubuntu4.4 libkrb5support0 – 1.17-6ubuntu4.4 krb5-doc – 1.17-6ubuntu4.4 libkrb5-dev – 1.17-6ubuntu4.4 krb5-pkinit – 1.17-6ubuntu4.4 libkrb5-3 – 1.17-6ubuntu4.4 krb5-kdc-ldap – 1.17-6ubuntu4.4 krb5-otp – 1.17-6ubuntu4.4 krb5-gss-samples – 1.17-6ubuntu4.4 krb5-multidev – 1.17-6ubuntu4.4 krb5-locales – 1.17-6ubuntu4.4 libgssapi-krb5-2 – 1.17-6ubuntu4.4 krb5-kdc – 1.17-6ubuntu4.4 libkrad-dev – 1.17-6ubuntu4.4 krb5-k5tls – 1.17-6ubuntu4.4 libkrad0 – 1.17-6ubuntu4.4 libkadm5srv-mit11 – 1.17-6ubuntu4.4 libkadm5clnt-mit11 – 1.17-6ubuntu4.4 krb5-admin-server – 1.17-6ubuntu4.4 No subscription required
CVEs contained in this USN include: CVE-2023-36054.
Severity is medium unless otherwise noted.
Users of affected products are strongly encouraged to follow the mitigations below. The Cloud Foundry project recommends upgrading the following releases:
2023-11-09: Initial vulnerability report published.
CPE | Name | Operator | Version |
---|---|---|---|
cflinuxfs4 | lt | 1.50.0 | |
jammy stemcells | lt | 1.289 | |
cf deployment | lt | 1.289 |