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USN-5454-2: CUPS vulnerabilities

31 May 2022

Several security issues were fixed in CUPS.

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)

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