CVE-2018-20020 is a critical heap out-of-bounds write vulnerability in LibVNC client code (before commit 7b1ef0ffc4815cab9a96c7278394152bdc89dc4d) that affects various Canonical and Debian Linux distributions. This flaw, rated 9.8 CVSS, allows unauthenticated attackers to achieve remote code execution with low attack complexity. While no public exploit code or active exploitation has been observed, the vulnerability has garnered significant community discussion and media coverage, indicating its potential impact.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 0.9.12CPE matchmatch criteria | cpe:2.3:a:libvnc_project:libvncserver:*:*:*:*:*:*:*:* | ||
14.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* | ||
16.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* | ||
18.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* | ||
18.10CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.