USN-5454-1: CUPS vulnerabilities

Releases

• Ubuntu 22.04 LTS
• Ubuntu 21.10
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM

Packages

• cups - Common UNIX Printing System(tm)

Details

Joshua Mason discovered that CUPS incorrectly handled the secret key used
to access the administrative web interface. A remote attacker could
possibly use this issue to open a session as an administrator and execute
arbitrary code. (CVE-2022-26691)

It was discovered that CUPS incorrectly handled certain memory operations
when handling IPP printing. A remote attacker could possibly use this issue
to cause CUPS to crash, leading to a denial of service, or obtain sensitive
information. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04
LTS. (CVE-2019-8842, CVE-2020-10001)

Update instructions

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

Ubuntu 22.04

• cups - 2.4.1op1-1ubuntu4.1

Ubuntu 21.10

• cups - 2.3.3op2-7ubuntu2.1

Ubuntu 20.04

• cups - 2.3.1-9ubuntu1.2

Ubuntu 18.04

• cups - 2.2.7-1ubuntu2.9

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

References

• CVE-2020-10001
• CVE-2019-8842
• CVE-2022-26691

Related notices

• USN-5454-2