USN-6088-2

Source
https://ubuntu.com/security/notices/USN-6088-2
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/USN-6088-2.json
Related
Published
2023-05-23T14:07:29.572972Z
Modified
2023-05-23T14:07:29.572972Z
Details

USN-6088-1 fixed vulnerabilities in runC. This update provides the corresponding updates for Ubuntu 16.04 LTS.

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-2019-19921)

Felix Wilhelm discovered that runC incorrecly handled netlink messages. An attacker could possibly use this issue to escalate privileges. (CVE-2021-43784)

Andrew G. Morgan discovered that runC incorrectly set inherited process capabilities inside the container. An attacker could possibly use this issue to escalate privileges. (CVE-2022-29162)

Original advisory 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)

References

Affected packages

Ubuntu:Pro:16.04:LTS / runc

Package

Name
runc

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0The exact introduced commit is unknown
Fixed
1.0.0~rc7+git20190403.029124da-0ubuntu1~16.04.4+esm4

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "runc": "1.0.0~rc7+git20190403.029124da-0ubuntu1~16.04.4+esm4",
            "golang-github-opencontainers-runc-dev": "1.0.0~rc7+git20190403.029124da-0ubuntu1~16.04.4+esm4"
        }
    ]
}