[USN-5459-1] cifs-utils vulnerabilities


========================================================================== Ubuntu Security Notice USN-5459-1 June 02, 2022
cifs-utils vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 22.04 LTS – Ubuntu 21.10 – Ubuntu 20.04 LTS – Ubuntu 18.04 LTS
Summary:
Several security issues were fixed in cifs-utils.
Software Description: – cifs-utils: Common Internet File System utilities
Details:
Aurélien Aptel discovered that cifs-utils invoked a shell when requesting a password. In certain environments, a local attacker could possibly use this issue to escalate privileges. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-14342)
It was discovered that cifs-utils incorrectly used host credentials when mounting a krb5 CIFS file system from within a container. An attacker inside a container could possibly use this issue to obtain access to sensitive information. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2021-20208)
It was discovered that cifs-utils incorrectly handled certain command-line arguments. A local attacker could possibly use this issue to obtain root privileges. (CVE-2022-27239)
It was discovered that cifs-utils incorrectly handled verbose logging. A local attacker could possibly use this issue to obtain sensitive information. (CVE-2022-29869)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 22.04 LTS: cifs-utils 2:6.14-1ubuntu0.1
Ubuntu 21.10: cifs-utils 2:6.11-3.1ubuntu0.1
Ubuntu 20.04 LTS: cifs-utils 2:6.9-1ubuntu0.2
Ubuntu 18.04 LTS: cifs-utils 2:6.8-1ubuntu1.2
In general, a standard system update will make all the necessary changes.
References: ubuntu.com/security/notices/USN-5459-1 CVE-2020-14342, CVE-2021-20208, CVE-2022-27239, CVE-2022-29869
Package Information: launchpad.net/ubuntu/+source/cifs-utils/2:6.14-1ubuntu0.1 launchpad.net/ubuntu/+source/cifs-utils/2:6.11-3.1ubuntu0.1 launchpad.net/ubuntu/+source/cifs-utils/2:6.9-1ubuntu0.2 launchpad.net/ubuntu/+source/cifs-utils/2:6.8-1ubuntu1.2