1. Ubuntu Security Notices
  2. USN-6673-2

USN-6673-2: python-cryptography vulnerability

Publication date

14 March 2024

Overview

python-cryptography could be made to expose sensitive information over the network.

Releases

Packages

Details

USN-6673-1 provided a security update for python-cryptography.
This update provides the corresponding update for Ubuntu 16.04 LTS.

Original advisory details:

Hubert Kario discovered that python-cryptography incorrectly handled
errors returned by the OpenSSL API when processing incorrect padding in
RSA PKCS#1 v1.5. A remote attacker could possibly use this issue to expose
confidential or sensitive information. (CVE-2023-50782)

USN-6673-1 provided a security update for python-cryptography.
This update provides the corresponding update for Ubuntu 16.04 LTS.

Original advisory details:

Hubert Kario discovered that python-cryptography incorrectly handled
errors returned by the OpenSSL API when processing incorrect padding in
RSA PKCS#1 v1.5. A remote attacker could possibly use this issue to expose
confidential or sensitive information. (CVE-2023-50782)

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
16.04 xenial python-cryptography –  1.2.3-1ubuntu0.3+esm1  
python3-cryptography –  1.2.3-1ubuntu0.3+esm1  

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References

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