CVE-2018-12911 is a critical off-by-one error with an out-of-bounds write in the get_simple_globs functions of WebKitGTK+ versions up to 2.20.3, specifically within its xdgmimecache.c and xdgmimeglob.c components. This vulnerability, affecting Canonical Ubuntu Linux and WebKitGTK+, carries a CVSS score of 9.8, indicating a severe risk with network-based exploitation, low attack complexity, and high impact on confidentiality, integrity, and availability. Despite its critical severity, there is currently no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
2.20.3CPE matchmatch criteria | cpe:2.3:a:webkitgtk:webkitgtk\+:2.20.3:*:*:*:*:*:*:* | ||
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: 3.0
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.
Remediation records are not available for this CVE.