CVE-2021-44731 describes a race condition in the snapd 2.54.2 snap-confine binary, allowing a local attacker to achieve root privileges by manipulating a snap's private mount namespace. This vulnerability affects Canonical, Debian, and Fedora Project distributions. With a CVSS score of 7.8 (High), it presents a significant risk due to its potential for complete compromise (C, I, A: High) with low privileges required (PR:L) and high attack complexity (AC:H). While not listed in CISA's KEV catalog and lacking public exploit code in Metasploit, Nuclei, or ExploitDB, the vulnerability has garnered notable community discussion and media coverage, indicating awareness and potential for future exploitation.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 2.54.2CPE matchmatch criteria | cpe:2.3:a:canonical:snapd:*:*:*:*:*:*:*:* | ||
18.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* | ||
20.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* | ||
21.10CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:21.10:*:*:*:*:*:*:* | ||
34CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.4 InfoSec Media, 0.1 Vendor Blog, and 0.0 Security Researcher mentions.