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USN-5753-1: snapd vulnerability

1 December 2022

snapd could be made to run programs as an administrator.

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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.

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Releases

Packages

  • snapd - Daemon and tooling that enable snap packages

Details

The Qualys Research Team discovered that a race condition existed in the
snapd snap-confine binary when preparing the private /tmp mount for a
snap. A local attacker could possibly use this issue to escalate privileges
and execute arbitrary code.

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 22.10
Ubuntu 22.04
Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04

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

References