CVE-2016-2856 is a high-severity vulnerability in the pt_chown component of the glibc package, affecting Debian and Ubuntu Linux distributions. It stems from a missing namespace check during file-descriptor passing, allowing local users to intercept keystrokes, spoof data, and potentially escalate privileges through pts read and write operations. With a CVSS score of 8.4 (High), this vulnerability is easily exploitable locally with low attack complexity, leading to high impacts on confidentiality, integrity, and availability. While not actively exploited in the wild (KEV: No), a public exploit (EDB-41760) exists, though there is minimal community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
12.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* | ||
14.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* | ||
15.10CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:* | ||
8.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:L/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, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.5 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.
Remediation records are not available for this CVE.