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Ubuntu Security Notice USN-3658-3
August 16, 2018

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

– Ubuntu 12.04 ESM

Summary:

Several security issues were fixed in procps-ng.

Software Description:
– procps: /proc file system utilities

Details:

USN-3658-1 fixed a vulnerability in procps-ng. This update provides
the corresponding update for Ubuntu 12.04 ESM.

Original advisory 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 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)

Update instructions:

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

Ubuntu 12.04 ESM:
procps                          1:3.2.8-11ubuntu6.6

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

References:
https://usn.ubuntu.com/usn/usn-3658-3
https://usn.ubuntu.com/usn/usn-3658-1
CVE-2018-1122, CVE-2018-1123, CVE-2018-1125—–BEGIN PGP SIGNATURE—–
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