Amazon Linux 2 Security Advisory: ALASNITRO-ENCLAVES-2021-011
Advisory Release Date: 2021-10-19 20:47 Pacific
Advisory Updated Date: 2021-11-18 21:38 Pacific
Severity:
Medium
Issue Overview:
A flaw was found in containerd CRI plugin. Containers launched through containerd's CRI implementation that share the same image may receive incorrect environment variables, including values that are defined for other containers. The highest threat from this vulnerability is to data confidentiality. (CVE-2021-21334)
Affected Packages:
containerd
Note:
This advisory is applicable to Amazon Linux 2 - Nitro-enclaves Extra. Visit this page to learn more about Amazon Linux 2 (AL2) Extras and this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update containerd to update your system.
New Packages:
aarch64:
containerd-1.4.4-1.amzn2.aarch64
containerd-stress-1.4.4-1.amzn2.aarch64
containerd-debuginfo-1.4.4-1.amzn2.aarch64
src:
containerd-1.4.4-1.amzn2.src
x86_64:
containerd-1.4.4-1.amzn2.x86_64
containerd-stress-1.4.4-1.amzn2.x86_64
containerd-debuginfo-1.4.4-1.amzn2.x86_64