Vulnerability identifier: #VU61675

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-0391

CWE-ID: CWE-93

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 inject arbitrary data in server response.

The vulnerability exists due to insufficient validation of attacker-supplied data within the urllib.parse module in Python. A remote attacker can pass specially crafted data to the application containing CR-LF characters and modify application behavior.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Python: 3.9.0 - 3.9.4, 3.8 - 3.8.10, 3.7 - 3.7.10

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External links
http://bugs.python.org/issue43882
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CSD2YBXP3ZF44E44QMIIAR5VTO35KTRB/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UDBDBAU6HUPZHISBOARTXZ5GKHF2VH5U/
http://security.netapp.com/advisory/ntap-20220225-0009/

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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.