[USN-6525-1] pysha3 vulnerability

Marc Deslauriers marc.deslauriers at canonical.com
Wed Nov 29 17:40:29 UTC 2023

Ubuntu Security Notice USN-6525-1
November 29, 2023

pysha3 vulnerability

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

- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS


pysha3 could be made to crash or run programs if it received specially
crafted data.

Software Description:
- pysha3: SHA-3 (Keccak) hash implementation


Nicky Mouha discovered that pysha incorrectly handled certain SHA-3
operations. An attacker could possibly use this issue to cause pysha3 to
crash, resulting in a denial of service, or possibly execute arbitrary

Update instructions:

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

Ubuntu 22.04 LTS:
   python3-sha3                    1.0.2-4.2ubuntu0.22.04.1

Ubuntu 20.04 LTS:
   python3-sha3                    1.0.2-4ubuntu0.1

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


Package Information:

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