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CVE-2022-23471

Status Candidate

Overview

containerd is an open source container runtime. A bug was found in containerd's CRI implementation where a user can exhaust memory on the host. In the CRI stream server, a goroutine is launched to handle terminal resize events if a TTY is requested. If the user's process fails to launch due to, for example, a faulty command, the goroutine will be stuck waiting to send without a receiver, resulting in a memory leak. Kubernetes and crictl can both be configured to use containerd's CRI implementation and the stream server is used for handling container IO. This bug has been fixed in containerd 1.6.12 and 1.5.16. Users should update to these versions to resolve the issue. Users unable to upgrade should ensure that only trusted images and commands are used and that only trusted users have permissions to execute commands in running containers.

Related Files

Gentoo Linux Security Advisory 202401-31
Posted Jan 31, 2024
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202401-31 - Multiple vulnerabilities have been found in containerd, the worst of which could result in privilege escalation. Versions greater than or equal to 1.6.14 are affected.

tags | advisory, vulnerability
systems | linux, gentoo
advisories | CVE-2021-32760, CVE-2021-41103, CVE-2022-23471, CVE-2022-23648, CVE-2022-24769, CVE-2022-31030
SHA-256 | 340e890e584a72be161ce1a3ca689044b98f4c14c7bc18bb98943aa01d4f4ea1
Download | Favorite | View
Ubuntu Security Notice USN-5776-1
Posted Dec 13, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5776-1 - It was discovered that containerd incorrectly handled memory when receiving certain faulty Exec or ExecSync commands. A remote attacker could possibly use this issue to cause a denial of service or crash containerd. It was discovered that containerd incorrectly set up inheritable file capabilities. An attacker could possibly use this issue to escalate privileges inside a container. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2022-23471, CVE-2022-24769, CVE-2022-24778
SHA-256 | a5c37b7f401bff2eeb24eea7d980ad8afb19a337b55dbc18b318e7e8ecd8d937
Download | Favorite | View
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