CVE-2018-1120

Source
Severity Medium
Remote No
Type Denial of service
Description
A denial of service has been found in Linux <= 4.16.9. An attacker can block any read() access to /proc/PID/cmdline by mmap()ing a FUSE file (Filesystem in Userspace) onto this process's command-line arguments. The attacker can therefore block pgrep, pidof, pkill, ps, and w, either forever (a denial of service), or for some controlled time (a synchronization tool for exploiting other vulnerabilities).
Group Package Affected Fixed Severity Status Ticket
AVG-704 linux-zen 4.16.9-1 4.17-1 High Fixed
AVG-703 linux-hardened 4.16.9.a-1 4.17a-1 High Fixed
AVG-702 linux-lts 4.14.41-1 4.14.44-1 High Fixed
AVG-701 linux 4.16.9-1 4.17.2-1 High Fixed
References
https://www.qualys.com/2018/05/17/procps-ng-audit-report-advisory.txt
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7f7ccc2ccc2e70c6054685f5e3522efa81556830
Notes
Fixed in v4.17