========================================================================== 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: https://ubuntu.com/security/notices/USN-5459-1 CVE-2020-14342, CVE-2021-20208, CVE-2022-27239, CVE-2022-29869 Package Information: https://launchpad.net/ubuntu/+source/cifs-utils/2:6.14-1ubuntu0.1 https://launchpad.net/ubuntu/+source/cifs-utils/2:6.11-3.1ubuntu0.1 https://launchpad.net/ubuntu/+source/cifs-utils/2:6.9-1ubuntu0.2 https://launchpad.net/ubuntu/+source/cifs-utils/2:6.8-1ubuntu1.2