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Ubuntu Security Notice USN-7015-4
Ubuntu Security Notice 7015-4 - USN-7015-1 fixed several vulnerabilities in Python. This update provides the corresponding update for CVE-2023-27043 for python2.7 and python3.5 in Ubuntu 14.04 LTS. 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. 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. 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. 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. 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.
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Ubuntu Security Notice USN-7015-4
October 14, 2024
python2.7, python3.5 vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 LTS
Summary:
Python could me made to bypass some restrictions 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:
USN-7015-1 fixed several vulnerabilities in Python. This update provides
the corresponding update for CVE-2023-27043 for python2.7 and python3.5 in
Ubuntu 14.04 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 14.04 LTS
python2.7 2.7.6-8ubuntu0.6+esm20
Available with Ubuntu Pro
python2.7-minimal 2.7.6-8ubuntu0.6+esm20
Available with Ubuntu Pro
python3.5 3.5.2-2ubuntu0~16.04.4~14.04.1+esm3
Available with Ubuntu Pro
python3.5-minimal 3.5.2-2ubuntu0~16.04.4~14.04.1+esm3
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.
References:
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-2023-27043
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