CVE-2018-1121

Name
CVE-2018-1121
Description
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.
NVD Severity
medium
Other trackers
Mailing lists
Exploits
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
Exploit https://www.qualys.com/2018/05/17/procps-ng-audit-report-advisory.txt
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1121
Exploit http://seclists.org/oss-sec/2018/q2/122
Exploit https://www.exploit-db.com/exploits/44806/
Third Party Advisory http://www.securityfocus.com/bid/104214

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:procps_project:procps:*:*:*:*:*:*:*:* procps >= None <= 3.3.15

Vulnerable and fixed packages

Source package Branch Version Maintainer Status