USN-6244-1: AMD Microcode vulnerability

25 July 2023

AMD processors may allow an attacker to expose sensitive information due to a vector register speculative execution vulnerability.

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Releases

Packages

Details

Tavis Ormandy discovered that some AMD processors did not properly handle
speculative execution of certain vector register instructions. A local attacker
could use this to expose sensitive information.

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 23.04
Ubuntu 22.04
Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04

After a standard system update you need to reboot your computer to make
all the necessary changes.

References

Related notices

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