USN-6947-1: Kerberos vulnerabilities
8 August 2024
Kerberos could be made to crash if it received specially crafted input.
Releases
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 ESM
- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM
Packages
- krb5 - MIT Kerberos Network Authentication Protocol
Details
It was discovered that Kerberos incorrectly handled GSS message tokens
where an unwrapped token could appear to be truncated. An attacker
could possibly use this issue to cause a denial of service.
(CVE-2024-37370)
It was discovered that Kerberos incorrectly handled GSS message tokens
when sent a token with invalid length fields. An attacker could possibly
use this issue to cause a denial of service. (CVE-2024-37371)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 24.04
-
krb5-admin-server
-
1.20.1-6ubuntu2.1
-
krb5-kdc
-
1.20.1-6ubuntu2.1
-
krb5-kdc-ldap
-
1.20.1-6ubuntu2.1
-
krb5-otp
-
1.20.1-6ubuntu2.1
-
krb5-pkinit
-
1.20.1-6ubuntu2.1
-
krb5-user
-
1.20.1-6ubuntu2.1
-
libgssapi-krb5-2
-
1.20.1-6ubuntu2.1
-
libgssrpc4t64
-
1.20.1-6ubuntu2.1
-
libk5crypto3
-
1.20.1-6ubuntu2.1
-
libkadm5clnt-mit12
-
1.20.1-6ubuntu2.1
-
libkadm5srv-mit12
-
1.20.1-6ubuntu2.1
-
libkdb5-10t64
-
1.20.1-6ubuntu2.1
-
libkrad0
-
1.20.1-6ubuntu2.1
-
libkrb5-3
-
1.20.1-6ubuntu2.1
-
libkrb5support0
-
1.20.1-6ubuntu2.1
Ubuntu 22.04
-
krb5-admin-server
-
1.19.2-2ubuntu0.4
-
krb5-kdc
-
1.19.2-2ubuntu0.4
-
krb5-kdc-ldap
-
1.19.2-2ubuntu0.4
-
krb5-otp
-
1.19.2-2ubuntu0.4
-
krb5-pkinit
-
1.19.2-2ubuntu0.4
-
krb5-user
-
1.19.2-2ubuntu0.4
-
libgssapi-krb5-2
-
1.19.2-2ubuntu0.4
-
libgssrpc4
-
1.19.2-2ubuntu0.4
-
libk5crypto3
-
1.19.2-2ubuntu0.4
-
libkadm5clnt-mit12
-
1.19.2-2ubuntu0.4
-
libkadm5srv-mit12
-
1.19.2-2ubuntu0.4
-
libkdb5-10
-
1.19.2-2ubuntu0.4
-
libkrad0
-
1.19.2-2ubuntu0.4
-
libkrb5-3
-
1.19.2-2ubuntu0.4
-
libkrb5support0
-
1.19.2-2ubuntu0.4
Ubuntu 20.04
-
krb5-admin-server
-
1.17-6ubuntu4.6
-
krb5-kdc
-
1.17-6ubuntu4.6
-
krb5-kdc-ldap
-
1.17-6ubuntu4.6
-
krb5-otp
-
1.17-6ubuntu4.6
-
krb5-pkinit
-
1.17-6ubuntu4.6
-
krb5-user
-
1.17-6ubuntu4.6
-
libgssapi-krb5-2
-
1.17-6ubuntu4.6
-
libgssrpc4
-
1.17-6ubuntu4.6
-
libk5crypto3
-
1.17-6ubuntu4.6
-
libkadm5clnt-mit11
-
1.17-6ubuntu4.6
-
libkadm5srv-mit11
-
1.17-6ubuntu4.6
-
libkdb5-9
-
1.17-6ubuntu4.6
-
libkrad0
-
1.17-6ubuntu4.6
-
libkrb5-3
-
1.17-6ubuntu4.6
-
libkrb5support0
-
1.17-6ubuntu4.6
Ubuntu 18.04
-
krb5-admin-server
-
1.16-2ubuntu0.4+esm2
Available with Ubuntu Pro
-
krb5-kdc
-
1.16-2ubuntu0.4+esm2
Available with Ubuntu Pro
-
krb5-kdc-ldap
-
1.16-2ubuntu0.4+esm2
Available with Ubuntu Pro
-
krb5-otp
-
1.16-2ubuntu0.4+esm2
Available with Ubuntu Pro
-
krb5-pkinit
-
1.16-2ubuntu0.4+esm2
Available with Ubuntu Pro
-
krb5-user
-
1.16-2ubuntu0.4+esm2
Available with Ubuntu Pro
-
libgssapi-krb5-2
-
1.16-2ubuntu0.4+esm2
Available with Ubuntu Pro
-
libgssrpc4
-
1.16-2ubuntu0.4+esm2
Available with Ubuntu Pro
-
libk5crypto3
-
1.16-2ubuntu0.4+esm2
Available with Ubuntu Pro
-
libkadm5clnt-mit11
-
1.16-2ubuntu0.4+esm2
Available with Ubuntu Pro
-
libkadm5srv-mit11
-
1.16-2ubuntu0.4+esm2
Available with Ubuntu Pro
-
libkdb5-9
-
1.16-2ubuntu0.4+esm2
Available with Ubuntu Pro
-
libkrad0
-
1.16-2ubuntu0.4+esm2
Available with Ubuntu Pro
-
libkrb5-3
-
1.16-2ubuntu0.4+esm2
Available with Ubuntu Pro
-
libkrb5support0
-
1.16-2ubuntu0.4+esm2
Available with Ubuntu Pro
Ubuntu 16.04
-
krb5-admin-server
-
1.13.2+dfsg-5ubuntu2.2+esm5
Available with Ubuntu Pro
-
krb5-kdc
-
1.13.2+dfsg-5ubuntu2.2+esm5
Available with Ubuntu Pro
-
krb5-kdc-ldap
-
1.13.2+dfsg-5ubuntu2.2+esm5
Available with Ubuntu Pro
-
krb5-otp
-
1.13.2+dfsg-5ubuntu2.2+esm5
Available with Ubuntu Pro
-
krb5-pkinit
-
1.13.2+dfsg-5ubuntu2.2+esm5
Available with Ubuntu Pro
-
krb5-user
-
1.13.2+dfsg-5ubuntu2.2+esm5
Available with Ubuntu Pro
-
libgssapi-krb5-2
-
1.13.2+dfsg-5ubuntu2.2+esm5
Available with Ubuntu Pro
-
libgssrpc4
-
1.13.2+dfsg-5ubuntu2.2+esm5
Available with Ubuntu Pro
-
libk5crypto3
-
1.13.2+dfsg-5ubuntu2.2+esm5
Available with Ubuntu Pro
-
libkadm5clnt-mit9
-
1.13.2+dfsg-5ubuntu2.2+esm5
Available with Ubuntu Pro
-
libkadm5srv-mit9
-
1.13.2+dfsg-5ubuntu2.2+esm5
Available with Ubuntu Pro
-
libkdb5-8
-
1.13.2+dfsg-5ubuntu2.2+esm5
Available with Ubuntu Pro
-
libkrad0
-
1.13.2+dfsg-5ubuntu2.2+esm5
Available with Ubuntu Pro
-
libkrb5-3
-
1.13.2+dfsg-5ubuntu2.2+esm5
Available with Ubuntu Pro
-
libkrb5support0
-
1.13.2+dfsg-5ubuntu2.2+esm5
Available with Ubuntu Pro
Ubuntu 14.04
-
krb5-admin-server
-
1.12+dfsg-2ubuntu5.4+esm5
Available with Ubuntu Pro
-
krb5-kdc
-
1.12+dfsg-2ubuntu5.4+esm5
Available with Ubuntu Pro
-
krb5-kdc-ldap
-
1.12+dfsg-2ubuntu5.4+esm5
Available with Ubuntu Pro
-
krb5-otp
-
1.12+dfsg-2ubuntu5.4+esm5
Available with Ubuntu Pro
-
krb5-pkinit
-
1.12+dfsg-2ubuntu5.4+esm5
Available with Ubuntu Pro
-
krb5-user
-
1.12+dfsg-2ubuntu5.4+esm5
Available with Ubuntu Pro
-
libgssapi-krb5-2
-
1.12+dfsg-2ubuntu5.4+esm5
Available with Ubuntu Pro
-
libgssrpc4
-
1.12+dfsg-2ubuntu5.4+esm5
Available with Ubuntu Pro
-
libk5crypto3
-
1.12+dfsg-2ubuntu5.4+esm5
Available with Ubuntu Pro
-
libkadm5clnt-mit9
-
1.12+dfsg-2ubuntu5.4+esm5
Available with Ubuntu Pro
-
libkadm5srv-mit8
-
1.12+dfsg-2ubuntu5.4+esm5
Available with Ubuntu Pro
-
libkadm5srv-mit9
-
1.12+dfsg-2ubuntu5.4+esm5
Available with Ubuntu Pro
-
libkdb5-7
-
1.12+dfsg-2ubuntu5.4+esm5
Available with Ubuntu Pro
-
libkrad0
-
1.12+dfsg-2ubuntu5.4+esm5
Available with Ubuntu Pro
-
libkrb5-3
-
1.12+dfsg-2ubuntu5.4+esm5
Available with Ubuntu Pro
-
libkrb5support0
-
1.12+dfsg-2ubuntu5.4+esm5
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.