USN-4340-1: CUPS vulnerabilities

cups vulnerabilities

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

Ubuntu 20.04
Ubuntu 19.10
Ubuntu 18.04 LTS
Ubuntu 16.04 LTS

Summary

Several security issues were fixed in CUPS.

Software Description

cups – Common UNIX Printing System™

Details

It was discovered that CUPS incorrectly handled certain language values. A
local attacker could possibly use this issue to cause CUPS to crash,
leading to a denial of service, or possibly obtain sensitive information.
This issue only applied to Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu
19.10. (CVE-2019-2228)

Stephan Zeisberg discovered that CUPS incorrectly handled certain malformed
ppd files. A local attacker could possibly use this issue to execute
arbitrary code. (CVE-2020-3898)

Update instructions

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

Ubuntu 20.04: cups – 2.3.1-9ubuntu1.1
Ubuntu 19.10: cups – 2.2.12-2ubuntu1.1
Ubuntu 18.04 LTS: cups – 2.2.7-1ubuntu2.8
Ubuntu 16.04 LTS: cups – 2.1.3-4ubuntu0.11

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

Source: USN-4340-1: CUPS vulnerabilities

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