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Ubuntu Security Notice USN-5776-1

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

Ubuntu Security Notice USN-5776-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-5776-1
December 13, 2022

containerd vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 22.10
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in containerd.

Software Description:
- containerd: daemon to control runC

Details:

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. (CVE-2022-23471, CVE-2022-31030)

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. (CVE-2022-24769)

It was discovered that containerd incorrectly handled access to encrypted
container images when using imgcrypt library. A remote attacker could
possibly use this issue to access encrypted images from other users.
This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and
Ubuntu 22.04 LTS. (CVE-2022-24778)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 22.10:
containerd 1.6.4-0ubuntu1.1

Ubuntu 22.04 LTS:
containerd 1.5.9-0ubuntu3.1

Ubuntu 20.04 LTS:
containerd 1.5.9-0ubuntu1~20.04.6

Ubuntu 18.04 LTS:
containerd 1.5.9-0ubuntu1~18.04.2

After a standard system update you need to restart containerd to make
all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-5776-1
CVE-2022-23471, CVE-2022-24769, CVE-2022-24778, CVE-2022-31030

Package Information:
https://launchpad.net/ubuntu/+source/containerd/1.6.4-0ubuntu1.1
https://launchpad.net/ubuntu/+source/containerd/1.5.9-0ubuntu3.1
https://launchpad.net/ubuntu/+source/containerd/1.5.9-0ubuntu1~20.04.6
https://launchpad.net/ubuntu/+source/containerd/1.5.9-0ubuntu1~18.04.2

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