USN-6513-2: Python vulnerability

Releases

• Ubuntu 23.04
• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS

Packages

• python3.10 - An interactive high-level object-oriented language
• python3.11 - An interactive high-level object-oriented language
• python3.8 - An interactive high-level object-oriented language

Details

USN-6513-1 fixed vulnerabilities in Python. This update provides the
corresponding updates for Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and
Ubuntu 23.04.

Original advisory details:

It was discovered that Python incorrectly handled certain plist files.
If a user or an automated system were tricked into processing a specially
crafted plist file, an attacker could possibly use this issue to consume
resources, resulting in a denial of service. (CVE-2022-48564)

It was discovered that Python instances of ssl.SSLSocket were vulnerable
to a bypass of the TLS handshake. An attacker could possibly use this
issue to cause applications to treat unauthenticated received data before
TLS handshake as authenticated data after TLS handshake. (CVE-2023-40217)

Update instructions

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

Ubuntu 23.04

• python3.11 - 3.11.4-1~23.04.1

Ubuntu 22.04

• python3.10 - 3.10.12-1~22.04.3

Ubuntu 20.04

• python3.8 - 3.8.10-0ubuntu1~20.04.9

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

References

• CVE-2023-40217

Related notices

• USN-6513-1
• USN-6891-1