USN-3853-1: GnuPG vulnerability

USN-3853-1: GnuPG vulnerability

gnupg2 vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 18.10
  • Ubuntu 18.04 LTS

Summary

GnuPG could allow unintended access to network services.

Software Description

  • gnupg2 – GNU privacy guard – a free PGP replacement

Details

Ben Fuhrmannek discovered that GnuPG incorrectly handled Web Key Directory
lookups. A remote attacker could possibly use this issue to cause a denial
of service, or perform Cross-Site Request Forgery attacks.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 18.10
gnupg2.2.8-3ubuntu1.1
gpg-wks-client2.2.8-3ubuntu1.1
Ubuntu 18.04 LTS
gnupg2.2.4-1ubuntu1.2
gpg-wks-client2.2.4-1ubuntu1.2

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

Source: USN-3853-1: GnuPG vulnerability

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