Vulnerability identifier: #VU95571

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-6923

CWE-ID: CWE-77

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Python
Universal components / Libraries / Scripting languages

Vendor: Python.org

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to insufficient validation of newlines for email headers when serializing an email message. A remote attacker can inject arbitrary headers into serialized email messages.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Python: 3.12.0 - 3.12.4

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External links
http://github.com/python/cpython/pull/122233
http://github.com/python/cpython/issues/121650
http://mail.python.org/archives/list/security-announce@python.org/thread/QH3BUOE2DYQBWP7NAQ7UNHPPOELKISRW/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.