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USN-5454-2: CUPS vulnerabilities

31 May 2022

Several security issues were fixed in CUPS.

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Releases

Packages

  • cups - Common UNIX Printing System(tm)

Details

USN-5454-1 fixed several vulnerabilities in CUPS. This update provides
the corresponding update for Ubuntu 16.04 ESM.

Original advisory 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)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 16.04

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

Related notices

  • USN-5454-1: cups-common, libcups2, cups-daemon, cups-server-common, cups-core-drivers, libcupsmime1, cups-client, libcups2-dev, libcupsimage2-dev, cups-ppdc, libcupscgi1, libcupsimage2, libcupsppdc1, cups-ipp-utils, cups-bsd, cups