USN-6673-1: python-cryptography vulnerabilities

Packages

python-cryptography - Cryptography Python library

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)

It was discovered that python-cryptography incorrectly handled memory
operations when processing mismatched PKCS#12 keys. A remote attacker could
possibly use this issue to cause python-cryptography to crash, leading to a
denial of service. This issue only affected Ubuntu 23.10. (CVE-2024-26130)

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)

It was discovered that python-cryptography incorrectly handled memory
operations when processing mismatched PKCS#12 keys. A remote attacker could
possibly use this issue to cause python-cryptography to crash, leading to a
denial of service. This issue only affected Ubuntu 23.10. (CVE-2024-26130)

Update instructions

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

Learn more about how to get the fixes.

Ubuntu Release	Package Version
23.10 mantic	python3-cryptography – 38.0.4-4ubuntu0.23.10.2
22.04 jammy	python3-cryptography – 3.4.8-1ubuntu2.2
20.04 focal	python-cryptography – 2.8-3ubuntu0.3
20.04 focal	python3-cryptography – 2.8-3ubuntu0.3
18.04 bionic	python-cryptography – 2.1.4-1ubuntu1.4+esm1
18.04 bionic	python3-cryptography – 2.1.4-1ubuntu1.4+esm1

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