ALT-PU-2019-3348-1
Closed vulnerabilities
Published: 2018-06-13
Modified: 2024-11-21
Modified: 2024-11-21
CVE-2018-1121
procps-ng, procps is vulnerable to a process hiding through race condition. Since the kernel's proc_pid_readdir() returns PID entries in ascending numeric order, a process occupying a high PID can use inotify events to determine when the process list is being scanned, and fork/exec to obtain a lower PID, thus avoiding enumeration. An unprivileged attacker can hide a process from procps-ng's utilities by exploiting a race condition in reading /proc/PID entries. This vulnerability affects procps and procps-ng up to version 3.3.15, newer versions might be affected also.
Severity: MEDIUM (5.9)
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
References:
- [oss-security] 20180517 Qualys Security Advisory - Procps-ng Audit Report
- [oss-security] 20180517 Qualys Security Advisory - Procps-ng Audit Report
- 104214
- 104214
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1121
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1121
- 44806
- 44806
- https://www.qualys.com/2018/05/17/procps-ng-audit-report-advisory.txt
- https://www.qualys.com/2018/05/17/procps-ng-audit-report-advisory.txt