CVE-2018-15864 describes an unchecked NULL pointer usage in xkbcommon versions prior to 0.8.2, specifically within the resolve_keysym function of xkbcomp/parser.y. This flaw allows a local attacker to crash the xkbcommon parser, leading to a denial of service, by providing a specially crafted keymap file. The vulnerability has a CVSS score of 5.5 (Medium) due to its local attack vector and high impact on availability, with low attack complexity and no user interaction required. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 0.8.1CPE matchmatch criteria | cpe:2.3:a:xkbcommon:libxkbcommon:*:*:*:*:*:*:*:* | ||
<= 0.8.1CPE matchmatch criteria | cpe:2.3:a:xkbcommon:xkbcommon:*:*:*:*:*:*:*:* | ||
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:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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.