Note:
This project will be discontinued after December 13, 2021. [more]
2018-06-13
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.
Products | Procps |
Type | Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') (CWE-362) |
First patch | - None (likely due to unavailable code) |
Links |
• http://www.securityfocus.com/bid/104214
• http://seclists.org/oss-sec/2018/q2/122 • https://www.qualys.com/2018/05/17/procps-ng-audit-report-advisory.txt • https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1121 • https://www.exploit-db.com/exploits/44806/ |