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USN-7043-4: cups-filters vulnerabilities

9 October 2024

cups-filters could be made to run programs if it received specially crafted network traffic.

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Releases

Packages

Details

USN-7043-1 fixed vulnerabilities in cups-filters. This update improves the
fix for CVE-2024-47176 by removing support for the legacy CUPS printer
discovery protocol entirely.

Original advisory 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)

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 22.04
Ubuntu 20.04

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

Related notices

  • USN-7042-1: cups-browsed-tests, cups-browsed
  • USN-7043-1: libcupsfilters1, libcupsfilters-dev, cups-browsed, cups-filters, libfontembed1, libfontembed-dev, cups-filters-core-drivers
  • USN-7043-2: libcupsfilters1, libcupsfilters-dev, cups-browsed, cups-filters, libfontembed1, libfontembed-dev, cups-filters-core-drivers
  • USN-7043-3: libcupsfilters1, libcupsfilters-dev, cups-browsed, cups-filters, libfontembed1, libfontembed-dev, cups-filters-core-drivers
  • USN-7042-2: cups-browsed-tests, cups-browsed
  • USN-7042-3: cups-browsed-tests, cups-browsed
  • USN-7044-1: libcupsfilters2-common, libcupsfilters-dev, libcupsfilters, libcupsfilters2t64, libcupsfilters-tests