USN-4764-1: GLib vulnerability

15 March 2021

GLib could be made to create files if it opened a specially crafted archive.

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Releases

Packages

  • glib2.0 - GLib library of C routines

Details

It was discovered that GLib incorrectly handled certain symlinks when
replacing files. If a user or automated system were tricked into extracting
a specially crafted file with File Roller, a remote attacker could possibly
create files outside of the intended directory.

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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 20.10
Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04

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

References

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Further reading