USN-3658-1: procps-ng vulnerabilities

23 May 2018

procps vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 18.04 LTS
  • Ubuntu 17.10
  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 LTS

Summary

Several security issues were fixed in procps-ng.

Software Description

  • procps - /proc file system utilities

Details

It was discovered that the procps-ng top utility incorrectly read its configuration file from the current working directory. A local attacker could possibly use this issue to escalate privileges. (CVE-2018-1122)

It was discovered that the procps-ng ps tool incorrectly handled memory. A local user could possibly use this issue to cause a denial of service. (CVE-2018-1123)

It was discovered that libprocps incorrectly handled the file2strvec() function. A local attacker could possibly use this to execute arbitrary code. (CVE-2018-1124)

It was discovered that the procps-ng pgrep utility incorrectly handled memory. A local attacker could possibly use this issue to cause de denial of service. (CVE-2018-1125)

It was discovered that procps-ng incorrectly handled memory. A local attacker could use this issue to cause a denial of service, or possibly execute arbitrary code. (CVE-2018-1126)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 18.04 LTS
libprocps6 - 2:3.3.12-3ubuntu1.1
procps - 2:3.3.12-3ubuntu1.1
Ubuntu 17.10
libprocps6 - 2:3.3.12-1ubuntu2.1
procps - 2:3.3.12-1ubuntu2.1
Ubuntu 16.04 LTS
libprocps4 - 2:3.3.10-4ubuntu2.4
procps - 2:3.3.10-4ubuntu2.4
Ubuntu 14.04 LTS
libprocps3 - 1:3.3.9-1ubuntu2.3
procps - 1:3.3.9-1ubuntu2.3

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

In general, a standard system update will make all the necessary changes.

References