MGASA-2021-0248 - Updated docker-containerd packages fix security vulnerability

Publication date: 13 Jun 2021
URL: https://advisories.mageia.org/MGASA-2021-0248.html
Type: security
Affected Mageia releases: 7, 8
CVE: CVE-2021-21334

In containerd (an industry-standard container runtime) before versions 1.3.10 
and 1.4.4, containers launched through containerd's CRI implementation 
(through Kubernetes, crictl, or any other pod/container client that uses the 
containerd CRI service) that share the same image may receive incorrect 
environment variables, including values that are defined for other 
containers. If the affected containers have different security contexts, this 
may allow sensitive information to be unintentionally shared. If you are not 
using containerd's CRI implementation (through one of the mechanisms 
described above), you are not vulnerable to this issue. If you are not 
launching multiple containers or Kubernetes pods from the same image which 
have different environment variables, you are not vulnerable to this issue. 
If you are not launching multiple containers or Kubernetes pods from the same 
image in rapid succession, you have reduced likelihood of being vulnerable to 
this issue This vulnerability has been fixed in containerd 1.3.10 and 
containerd 1.4.4. (CVE-2021-21334).

References:
- https://bugs.mageia.org/show_bug.cgi?id=29003
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/KUE2Z2ZUWBHRU36ZGBD2YSJCYB6ELPXE/
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21334

SRPMS:
- 7/core/docker-containerd-1.4.4-1.mga7
- 8/core/docker-containerd-1.4.4-1.mga8