Ubuntu Security Notice USN-7015-5

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Ubuntu Security Notice USN-7015-5
November 19, 2024

python2.7 vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:

– Ubuntu 22.04 LTS
– Ubuntu 20.04 LTS
– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS
– Ubuntu 14.04 LTS

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 headers. A remote attacker could possibly use this issue to
perform header injection. (CVE-2024-6923)

It was discovered that the Python http.cookies module incorrectly handled
parsing cookies that contained backslashes for quoted characters. A remote
attacker could possibly use this issue to cause Python to consume
resources, leading to a denial of service. (CVE-2024-7592)

It was discovered that the Python zipfile module incorrectly handled
certain malformed zip files. A remote attacker could possibly use this
issue to cause Python to stop responding, resulting in a denial of
service. (CVE-2024-8088)

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

Package Information:
https://launchpad.net/ubuntu/+source/python2.7/2.7.18-13ubuntu1.3
https://launchpad.net/ubuntu/+source/python2.7/2.7.18-1~20.04.5