CVE-2021-3155 is a local information disclosure vulnerability affecting snapd versions 2.54.2 and earlier, specifically within Canonical's snapd and Ubuntu Linux distributions. The flaw stems from snapd creating ~/snap directories with insecure permissions, allowing local attackers to read sensitive user data. Rated as MEDIUM severity (CVSS 5.5), it requires local access but is low complexity, potentially leading to high confidentiality impact. There is no evidence of active exploitation, public exploit code, or significant community discussion, indicating a low current threat landscape.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.54.3CPE 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:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.