USN-4340-1: CUPS vulnerabilities

Releases

• Ubuntu 20.04 LTS
• Ubuntu 19.10
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM

Packages

• cups - Common UNIX Printing System(tm)

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

• cups - 2.2.7-1ubuntu2.8

Ubuntu 16.04

• cups - 2.1.3-4ubuntu0.11

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

References

• CVE-2019-2228
• CVE-2020-3898