==========================================================================
Ubuntu Security Notice USN-6513-1
November 23, 2023

python2.7, python3.5, python3.6 vulnerabilities
==========================================================================

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

- Ubuntu 18.04 LTS (Available with Ubuntu Pro)
- Ubuntu 16.04 LTS (Available with Ubuntu Pro)
- Ubuntu 14.04 LTS (Available with Ubuntu Pro)

Summary:

Several security issues were fixed in Python.

Software Description:
- python2.7: An interactive high-level object-oriented language
- python3.6: An interactive high-level object-oriented language
- python3.5: An interactive high-level object-oriented language

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 18.04 LTS (Available with Ubuntu Pro):
   python2.7                       2.7.17-1~18.04ubuntu1.13+esm4
   python3.6                       3.6.9-1~18.04ubuntu1.13+esm1

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
   python2.7                       2.7.12-1ubuntu0~16.04.18+esm9
   python3.5                       3.5.2-2ubuntu0~16.04.13+esm12

Ubuntu 14.04 LTS (Available with Ubuntu Pro):
   python2.7                       2.7.6-8ubuntu0.6+esm18

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

References:
   https://ubuntu.com/security/notices/USN-6513-1
   CVE-2022-48564, CVE-2023-40217

Ubuntu 6513-1: Python vulnerabilities

November 23, 2023
Several security issues were fixed in Python.

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 18.04 LTS (Available with Ubuntu Pro) - Ubuntu 16.04 LTS (Available with Ubuntu Pro) - Ubuntu 14.04 LTS (Available with Ubuntu Pro) Summary: Several security issues were fixed in Python. Software Description: - python2.7: An interactive high-level object-oriented language - python3.6: An interactive high-level object-oriented language - python3.5: An interactive high-level object-oriented language 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 unauthenticate...

Read the Full Advisory

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS (Available with Ubuntu Pro):   python2.7                       2.7.17-1~18.04ubuntu1.13+esm4   python3.6                       3.6.9-1~18.04ubuntu1.13+esm1 Ubuntu 16.04 LTS (Available with Ubuntu Pro):   python2.7                       2.7.12-1ubuntu0~16.04.18+esm9   python3.5                       3.5.2-2ubuntu0~16.04.13+esm12 Ubuntu 14.04 LTS (Available with Ubuntu Pro):   python2.7                       2.7.6-8ubuntu0.6+esm18 In general, a standard system update will make all the necessary changes.

References

  https://ubuntu.com/security/notices/USN-6513-1

  CVE-2022-48564, CVE-2023-40217

Severity
Ubuntu Security Notice USN-6513-1

Package Information

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