==========================================================================
Ubuntu Security Notice USN-4314-1
March 31, 2020
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
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/4314-1
CVE-2020-10595
Package Information:
https://launchpad.net/ubuntu/+source/libpam-krb5/4.8-2ubuntu0.1
https://launchpad.net/ubuntu/+source/libpam-krb5/4.8-1ubuntu0.1
https://launchpad.net/ubuntu/+source/libpam-krb5/4.7-2ubuntu0.1
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