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USN-7043-2: cups-filters vulnerability

1 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 a vulnerability in cups-filters. This update provides
the corresponding update for Ubuntu 18.04 LTS.

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.

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 18.04

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

References

Related notices

  • USN-7042-1: cups-browsed-tests, cups-browsed
  • USN-7043-1: libcupsfilters-dev, libfontembed1, cups-filters, cups-browsed, libfontembed-dev, libcupsfilters1, cups-filters-core-drivers
  • USN-7043-3: libcupsfilters-dev, libfontembed1, cups-filters, cups-browsed, libfontembed-dev, libcupsfilters1, cups-filters-core-drivers
  • USN-7042-2: cups-browsed-tests, cups-browsed
  • USN-7043-4: libcupsfilters-dev, libfontembed1, cups-filters, cups-browsed, libfontembed-dev, libcupsfilters1, cups-filters-core-drivers