Summary
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)
Fixed packages 5
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 20.04 LTS 20.04:LTS | python2.7 | 2.7.18-1~20.04.5 |
| Ubuntu · 22.04 LTS 22.04:LTS | python2.7 | 2.7.18-13ubuntu1.3 |
| Ubuntu · Pro 14.04 LTS Pro:14.04:LTS | python2.7 | 2.7.6-8ubuntu0.6+esm21 |
| Ubuntu · Pro 16.04 LTS Pro:16.04:LTS | python2.7 | 2.7.12-1ubuntu0~16.04.18+esm12 |
| Ubuntu · Pro 18.04 LTS Pro:18.04:LTS | python2.7 | 2.7.17-1~18.04ubuntu1.13+esm7 |
Vulnerabilities 2
-
High 7.5CVE-2024-6232 Public exploit
Regular-expression DoS when parsing TarFile headers
There is a MEDIUM severity vulnerability affecting CPython. Regular expressions that allowed excessive backtracking during tarfile.TarFile header parsing are vulnerable to ReDoS via specifically-crafted tar archives.
-
Medium 5.5
Email header injection due to unquoted newlines
There is a MEDIUM severity vulnerability affecting CPython. The email module didn’t properly quote newlines for email headers when serializing an email message allowing for header injection when an email is serialized.