Summary
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)
Fixed packages 3
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 18.04 LTS 18.04:LTS | containerd | 1.5.9-0ubuntu1~18.04.2 |
| Ubuntu · 20.04 LTS 20.04:LTS | containerd | 1.5.9-0ubuntu1~20.04.6 |
| Ubuntu · 22.04 LTS 22.04:LTS | containerd | 1.5.9-0ubuntu3.1 |
Vulnerabilities 4
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High 7.5
Incorrect Authorization in imgcrypt
The imgcrypt library provides API exensions for containerd to support encrypted container images and implements the ctd-decoder command line tool for use by containerd to decrypt encrypted container images. The imgcrypt function `CheckAuthorization` is suppos…
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Medium 5.9
Default inheritable capabilities for linux container should be empty
Moby is an open-source project created by Docker to enable and accelerate software containerization. A bug was found in Moby (Docker Engine) prior to version 20.10.14 where containers were incorrectly started with non-empty inheritable Linux process capabilit…
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Medium 5.7
containerd CRI stream server: Host memory exhaustion through terminal resize goroutine leak
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 us…
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Medium 5.5
containerd CRI plugin: Host memory exhaustion through ExecSync
containerd is an open source container runtime. A bug was found in the containerd's CRI implementation where programs inside a container can cause the containerd daemon to consume memory without bound during invocation of the `ExecSync` API. This can cause co…