USN-3658-1: procps-ng vulnerabilities

Releases

• Ubuntu 18.04 ESM
• Ubuntu 17.10
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

Packages

• 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

• 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

• libprocps4 - 2:3.3.10-4ubuntu2.4
• procps - 2:3.3.10-4ubuntu2.4

Ubuntu 14.04

• libprocps3 - 1:3.3.9-1ubuntu2.3
• procps - 1:3.3.9-1ubuntu2.3

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

References

• CVE-2018-1122
• CVE-2018-1123
• CVE-2018-1124
• CVE-2018-1125
• CVE-2018-1126

Related notices

• USN-3658-3: procps
• USN-3658-2: procps