USN-7043-1: cups-filters vulnerabilities

Releases

• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS

Packages

• cups-filters - OpenPrinting CUPS Filters

Details

Simone Margaritelli discovered that the cups-filters cups-browsed component
could be used to create arbitrary printers from outside the local network.
In combination with issues in other printing components, a remote attacker
could possibly use this issue to connect to a system, created manipulated
PPD files, and execute arbitrary code when a printer is used. This update
disables support for the legacy CUPS printer discovery protocol.
(CVE-2024-47176)

Simone Margaritelli discovered that cups-filters incorrectly sanitized IPP
data when creating PPD files. A remote attacker could possibly use this
issue to manipulate PPD files and execute arbitrary code when a printer is
used. (CVE-2024-47076)

Update instructions

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

Ubuntu 22.04

• cups-browsed - 1.28.15-0ubuntu1.3
• cups-filters - 1.28.15-0ubuntu1.3

Ubuntu 20.04

• cups-browsed - 1.27.4-1ubuntu0.3
• cups-filters - 1.27.4-1ubuntu0.3

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

References

• CVE-2024-47176
• CVE-2024-47076

Related notices

• USN-7042-1: cups-browsed, cups-browsed-tests
• USN-7044-1: libcupsfilters, libcupsfilters2t64, libcupsfilters-dev, libcupsfilters-tests, libcupsfilters2-common