USN-8711-1: Libgcrypt vulnerability

Publication date

1 September 2026

Overview

Libgcrypt could be made to expose sensitive information over the network.


Packages

Details

It was discovered that Libgcrypt had a timing-based side-channel flaw in
its RSA implementation. A remote attacker could possibly use this issue to
obtain sensitive information.

It was discovered that Libgcrypt had a timing-based side-channel flaw in
its RSA implementation. A remote attacker could possibly use this issue to
obtain sensitive information.

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
26.04 LTS resolute libgcrypt20 –  1.12.0-2ubuntu1.1
24.04 LTS noble libgcrypt20 –  1.10.3-2ubuntu0.2
22.04 LTS jammy libgcrypt20 –  1.9.4-3ubuntu3.3

Reduce your security exposure

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