USN-4314-1: pam-krb5 vulnerability
libpam-krb5 vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 19.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 ESM
- Ubuntu 12.04 ESM
Summary
pam-krb5 could be made to execute arbitrary code if it received a specially
crafted response.
Software Description
- libpam-krb5 – PAM module for MIT Kerberos
Details
Russ Allbery discovered that pam-krb5 incorrectly handled some responses.
An attacker could possibly use this issue to execute arbitrary code.
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 19.10
- libpam-krb5 – 4.8-2ubuntu0.1
- Ubuntu 18.04 LTS
- libpam-krb5 – 4.8-1ubuntu0.1
- Ubuntu 16.04 LTS
- libpam-krb5 – 4.7-2ubuntu0.1
- Ubuntu 14.04 ESM
- libpam-krb5 – 4.6-2ubuntu0.1~esm1
- Ubuntu 12.04 ESM
- libpam-krb5 – 4.5-3ubuntu0.1
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
References
Source: USN-4314-1: pam-krb5 vulnerability
