CVE-2018-15859 describes a NULL pointer dereference vulnerability in xkbcommon versions prior to 0.8.2, specifically within the xkbcomp/expr.c component, affecting products like Canonical's libxkbcommon and Ubuntu Linux. This flaw allows local attackers to crash the xkbcommon parser by providing a specially crafted keymap file due to mishandled lookup failures during invalid atom parsing. Rated with a CVSS score of 5.5 (Medium), the vulnerability requires local access and has a high impact on availability, but no impact on confidentiality or integrity. There is 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.