CVE-2019-20839 describes a buffer overflow vulnerability in libvncclient/sockets.c within LibVNCServer versions prior to 0.9.13, affecting products from vendors like Canonical, Debian, and Siemens. This high-severity vulnerability (CVSS 7.5) allows for remote denial-of-service attacks due to unauthenticated input of a long socket filename. While no active exploitation, public exploit code, or significant community discussion has been observed, the potential for a complete system compromise remains.
| 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:*:*:*:esm:*:*:* | ||
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:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.