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Published on September 9th, 2023 📆 | 4900 Views ⚑

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Ubuntu Security Notice USN-6354-1 – Torchsec


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==========================================================================
Ubuntu Security Notice USN-6354-1
September 07, 2023

python2.7, python3.5 vulnerability
==========================================================================

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:

Python could be made to crash or leak sensitive information if it
received specially crafted input.

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

Details:

It was discovered that Python did not properly handle XML entity
declarations in plist files. An attacker could possibly use this
vulnerability to perform an XML External Entity (XXE) injection,
resulting in a denial of service or information disclosure.





Update instructions:

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

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
libpython2.7 2.7.17-1~18.04ubuntu1.13+esm1
libpython2.7-stdlib 2.7.17-1~18.04ubuntu1.13+esm1
python2.7 2.7.17-1~18.04ubuntu1.13+esm1
python2.7-minimal 2.7.17-1~18.04ubuntu1.13+esm1

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
libpython2.7 2.7.12-1ubuntu0~16.04.18+esm6
libpython2.7-stdlib 2.7.12-1ubuntu0~16.04.18+esm6
libpython3.5 3.5.2-2ubuntu0~16.04.13+esm9
libpython3.5-stdlib 3.5.2-2ubuntu0~16.04.13+esm9
python2.7 2.7.12-1ubuntu0~16.04.18+esm6
python2.7-minimal 2.7.12-1ubuntu0~16.04.18+esm6
python3.5 3.5.2-2ubuntu0~16.04.13+esm9
python3.5-minimal 3.5.2-2ubuntu0~16.04.13+esm9

Ubuntu 14.04 LTS (Available with Ubuntu Pro):
libpython2.7 2.7.6-8ubuntu0.6+esm16
libpython2.7-stdlib 2.7.6-8ubuntu0.6+esm16
python2.7 2.7.6-8ubuntu0.6+esm16
python2.7-minimal 2.7.6-8ubuntu0.6+esm16

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

References:
https://ubuntu.com/security/notices/USN-6354-1
CVE-2022-48565

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