Ubuntu alert USN-6088-1 (runc)
| From: | David Fernandez Gonzalez <david.fernandezgonzalez@canonical.com> | |
| To: | ubuntu-security-announce@lists.ubuntu.com | |
| Subject: | [USN-6088-1] runC vulnerabilities | |
| Date: | Thu, 18 May 2023 12:31:06 +0200 | |
| Message-ID: | <027baf46-7184-7c8f-d386-4398110ad3a1@canonical.com> |
========================================================================== Ubuntu Security Notice USN-6088-1 May 18, 2023 runc vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 23.04 - Ubuntu 22.10 - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS Summary: Several security issues were fixed in runC. Software Description: - runc: Open Container Project Details: It was discovered that runC incorrectly made /sys/fs/cgroup writable when in rootless mode. An attacker could possibly use this issue to escalate privileges. (CVE-2023-25809) It was discovered that runC incorrectly performed access control when mounting /proc to non-directories. An attacker could possibly use this issue to escalate privileges. (CVE-2023-27561) It was discovered that runC incorrectly handled /proc and /sys mounts inside a container. An attacker could possibly use this issue to bypass AppArmor, and potentially SELinux. (CVE-2023-28642) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 23.04: runc 1.1.4-0ubuntu3.1 Ubuntu 22.10: runc 1.1.4-0ubuntu1~22.10.3 Ubuntu 22.04 LTS: runc 1.1.4-0ubuntu1~22.04.3 Ubuntu 20.04 LTS: runc 1.1.4-0ubuntu1~20.04.3 Ubuntu 18.04 LTS: runc 1.1.4-0ubuntu1~18.04.2 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-6088-1 CVE-2023-25809, CVE-2023-27561, CVE-2023-28642 Package Information: https://launchpad.net/ubuntu/+source/runc/1.1.4-0ubuntu3.1 https://launchpad.net/ubuntu/+source/runc/1.1.4-0ubuntu1~... https://launchpad.net/ubuntu/+source/runc/1.1.4-0ubuntu1~... https://launchpad.net/ubuntu/+source/runc/1.1.4-0ubuntu1~... https://launchpad.net/ubuntu/+source/runc/1.1.4-0ubuntu1~...