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Ubuntu 22.04/20.04/18.04 LTS: USN-7015-5 critical: python DoS

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Calendar Grey November 19, 2024
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Recent updates have addressed security flaws in Python across multiple Ubuntu LTS releases. Ensure your system is updated promptly to mitigate risks of DoS attacks.
Several security issues were fixed in Python.

Summary

Several security issues were fixed in Python.

Software Description:

- python2.7: An interactive high-level object-oriented language

Details:

USN-7015-1 fixed several vulnerabilities in Python. This update provides

the corresponding update for CVE-2024-6232 and CVE-2024-6923 for python2.7

in Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS

and Ubuntu 22.04 LTS.

Original advisory details:

It was discovered that the Python email module incorrectly parsed email

addresses that contain special characters. A remote attacker could

possibly use this issue to bypass certain protection mechanisms.

(CVE-2023-27043)

It was discovered that Python allowed excessive backtracking while parsing

certain tarfile headers. A remote attacker could possibly use this issue

to cause Python to consume resources, leading to a denial of service.

(CVE-2024-6232)

It was discovered that the Python email module incorrectly quoted newlines

for email...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu python header injection email parsing tarfile issue

Update Instructions

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

Ubuntu 22.04 LTS
  python2.7                       2.7.18-13ubuntu1.3
  python2.7-minimal               2.7.18-13ubuntu1.3

Ubuntu 20.04 LTS
  python2.7                       2.7.18-1~20.04.5
  python2.7-minimal               2.7.18-1~20.04.5

Ubuntu 18.04 LTS
  python2.7                       2.7.17-1~18.04ubuntu1.13+esm7
                                  Available with Ubuntu Pro
  python2.7-minimal               2.7.17-1~18.04ubuntu1.13+esm7
                                  Available with Ubuntu Pro

Ubuntu 16.04 LTS
  python2.7                       2.7.12-1ubuntu0~16.04.18+esm12
                                  Available with Ubuntu Pro
  python2.7-minimal               2.7.12-1ubuntu0~16.04.18+esm12
                                  Available with Ubuntu Pro

Ubuntu 14.04 LTS
  python2.7                       2.7.6-8ubuntu0.6+esm21
                                  Available with Ubuntu Pro
  python2.7-minimal               2.7.6-8ubuntu0.6+esm21
                                  Available with Ubuntu Pro

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

References

https://ubuntu.com/security/notices/USN-7015-5

https://ubuntu.com/security/notices/USN-7015-4

https://ubuntu.com/security/notices/USN-7015-3

https://ubuntu.com/security/notices/USN-7015-2

https://ubuntu.com/security/notices/USN-7015-1

CVE-2024-6232, CVE-2024-6923

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7015-5

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu python header injection email parsing tarfile issue

Package Information

https://launchpad.net/ubuntu/+source/python2.7/2.7.18-13ubuntu1.3

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