CVE-2018-1123

Publication date 17 May 2018

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

procps-ng before version 3.3.15 is vulnerable to a denial of service in ps via mmap buffer overflow. Inbuilt protection in ps maps a guard page at the end of the overflowed buffer, ensuring that the impact of this flaw is limited to a crash (temporary denial of service).

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
procps	18.04 LTS bionic	Fixed 2:3.3.12-3ubuntu1.1
	17.10 artful	Fixed 2:3.3.12-1ubuntu2.1
	16.04 LTS xenial	Fixed 2:3.3.10-4ubuntu2.4
	14.04 LTS trusty	Fixed 1:3.3.9-1ubuntu2.3

Notes

mdeslaur

[PATCH 054/117] ps/output.c: Fix outbuf overflows in pr_args() etc.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
procps	Upstream: 136e372

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H