CVE-2021-41103 is a critical vulnerability in containerd, an open-source container runtime, affecting various Linux distributions including Debian and Fedora. It allows unprivileged Linux users on the host to traverse container root directories, execute programs with extended permissions, and potentially read/modify container files if UID collisions occur. With a CVSS score of 7.8 (HIGH), this local vulnerability has low attack complexity and can lead to high confidentiality, integrity, and availability impacts. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.4.11CPE matchmatch criteria | cpe:2.3:a:linuxfoundation:containerd:*:*:*:*:*:*:*:* | ||
>= 1.5.0, < 1.5.7CPE matchmatch criteria | cpe:2.3:a:linuxfoundation:containerd:*:*:*:*:*:*:*:* | ||
34CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | ||
35CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* | ||
11.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Insufficiently restricted permissions on plugin directories
Oct 12, 2021Insufficiently restricted permissions on plugin directories
Oct 4, 2021containerd: insufficiently restricted permissions on container root and plugin directories
Oct 4, 2021