CVE-2017-12176 describes a critical vulnerability in xorg-x11-server versions prior to 1.19.5, affecting Debian and X.Org X servers. This flaw, stemming from insufficient length validation in the ProcEstablishConnection function, allows a malicious X client to crash the X server or potentially execute arbitrary code. With a CVSS score of 9.8 (Critical), it presents a high-impact threat with network attack vector and low complexity, leading to potential complete compromise of confidentiality, integrity, and availability. While no public exploit intelligence (Metasploit, Nuclei, ExploitDB) or active exploitation is reported, and community discussion is minimal, the severity warrants immediate patching.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
8.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | ||
9.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | ||
< 1.19.5CPE matchmatch criteria | cpe:2.3:a:x.org:x_server:*:*:*:*:*:*:*:* |
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.
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.