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Ubuntu Security Notice USN-5817-1

Ubuntu Security Notice 5817-1 - Sebastian Chnelik discovered that setuptools incorrectly handled certain regex inputs. An attacker could possibly use this issue to cause a denial of service.

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Ubuntu Security Notice USN-5817-1
January 23, 2023

python-setuptools, setuptools vulnerability

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

  • Ubuntu 22.10
  • Ubuntu 22.04 LTS
  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 LTS
  • Ubuntu 16.04 ESM
  • Ubuntu 14.04 ESM

Summary:

Setuptools could be made to crash if it received specially crafted input.

Software Description:

  • python-setuptools: Python Distutils Enhancements
  • setuptools: Python Distutils Enhancements

Details:

Sebastian Chnelik discovered that setuptools incorrectly handled
certain regex inputs. An attacker could possibly use this issue
to cause a denial of service.

Update instructions:

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

Ubuntu 22.10:
pypy-setuptools 44.1.1-1.2ubuntu0.22.10.1
python-setuptools 44.1.1-1.2ubuntu0.22.10.1
python3-setuptools 59.6.0-1.2ubuntu0.22.10.1

Ubuntu 22.04 LTS:
pypy-setuptools 44.1.1-1.2ubuntu0.22.04.1
python-setuptools 44.1.1-1.2ubuntu0.22.04.1
python3-setuptools 59.6.0-1.2ubuntu0.22.04.1

Ubuntu 20.04 LTS:
pypy-setuptools 44.0.0-2ubuntu0.1
python-setuptools 44.0.0-2ubuntu0.1
python3-setuptools 45.2.0-1ubuntu0.1

Ubuntu 18.04 LTS:
pypy-setuptools 39.0.1-2ubuntu0.1
python-setuptools 39.0.1-2ubuntu0.1
python3-setuptools 39.0.1-2ubuntu0.1

Ubuntu 16.04 ESM:
pypy-setuptools 20.7.0-1ubuntu0.1~esm1
python-setuptools 20.7.0-1ubuntu0.1~esm1
python3-setuptools 20.7.0-1ubuntu0.1~esm1

Ubuntu 14.04 ESM:
python-setuptools 3.3-1ubuntu2+esm1
python3-setuptools 3.3-1ubuntu2+esm1

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

References:
https://ubuntu.com/security/notices/USN-5817-1
CVE-2022-40897

Package Information:
https://launchpad.net/ubuntu/+source/python-setuptools/44.1.1-1.2ubuntu0.22.10.1
https://launchpad.net/ubuntu/+source/setuptools/59.6.0-1.2ubuntu0.22.10.1
https://launchpad.net/ubuntu/+source/python-setuptools/44.1.1-1.2ubuntu0.22.04.1
https://launchpad.net/ubuntu/+source/setuptools/59.6.0-1.2ubuntu0.22.04.1
https://launchpad.net/ubuntu/+source/python-setuptools/44.0.0-2ubuntu0.1
https://launchpad.net/ubuntu/+source/setuptools/45.2.0-1ubuntu0.1
https://launchpad.net/ubuntu/+source/python-setuptools/39.0.1-2ubuntu0.1

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GHSA-r9hx-vwmv-q579: pypa/setuptools vulnerable to Regular Expression Denial of Service (ReDoS)

Python Packaging Authority (PyPA)'s setuptools is a library designed to facilitate packaging Python projects. Setuptools version 65.5.0 and earlier could allow remote attackers to cause a denial of service by fetching malicious HTML from a PyPI package or custom PackageIndex page due to a vulnerable Regular Expression in `package_index`. This has been patched in version 65.5.1.

CVE-2022-40897: setuptools/package_index.py at fe8a98e696241487ba6ac9f91faa38ade939ec5d · pypa/setuptools

An issue discovered in Python Packaging Authority (PyPA) setuptools 65.3.0 and earlier allows remote attackers to cause a denial of service via crafted HTML package or custom PackageIndex page.

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