==========================================================================
Ubuntu Security Notice USN-6524-1
November 29, 2023
pypy3 vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
Summary:
PyPy could be made to crash or run programs if it received specially
crafted data.
Software Description:
- pypy3: fast alternative implementation of Python 3.x
Details:
Nicky Mouha discovered that PyPy incorrectly handled certain SHA-3
operations. An attacker could possibly use this issue to cause PyPy to
crash, resulting in a denial of service, or possibly execute arbitrary
code.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 22.04 LTS:
   pypy3                           7.3.9+dfsg-1ubuntu0.1
Ubuntu 20.04 LTS:
   pypy3                           7.3.1+dfsg-4ubuntu0.1
In general, a standard system update will make all the necessary changes.
References:
   https://ubuntu.com/security/notices/USN-6524-1
   CVE-2022-37454
Package Information:
   https://launchpad.net/ubuntu/+source/pypy3/7.3.9+dfsg-1ubuntu0.1
   https://launchpad.net/ubuntu/+source/pypy3/7.3.1+dfsg-4ubuntu0.1