CVE-2018-1121

LOW
3.9
CVSS Score
Published: June 13, 2018 at 08:00 PM UTC
Updated: June 17, 2026 at 01:50 AM UTC
2 products affected across 2 vendorsProcpsProcps Ng

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Severity
LOW3.9
Exploit prediction
EPSS 4%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≥ 3.3.15v ≤ 3.3.15

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

Mailing Listx_refsource_MLISTExploitThird Party Advisory
http://seclists.org/oss-sec/2018/q2/122
VDB Entryx_refsource_BIDThird Party Advisory
http://www.securityfocus.com/bid/104214
x_refsource_CONFIRMIssue TrackingThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1121
Exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
https://www.exploit-db.com/exploits/44806/

CVSS

3.9LOWredhat
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
LOW
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-367CWE-362

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