Ubuntu update for python2.7

1) Input validation error

EUVDB-ID: #VU72618

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-2023-24329

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented filters.

The vulnerability exists due to insufficient validation of URLs that start with blank characters within urllib.parse component of Python. A remote attacker can pass specially crafted URL to bypass existing filters.

Mitigation

Update the affected package python2.7 to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 22.10

python3.6 (Ubuntu package): before 3.6.9-1~18.04ubuntu1.12

python2.7 (Ubuntu package): before Ubuntu Pro (Infra-only)

python3.8 (Ubuntu package): before 3.8.10-0ubuntu1~20.04.7

python3.10 (Ubuntu package): before 3.10.7-1ubuntu0.3

python3.5 (Ubuntu package): before Ubuntu Pro (Infra-only)

External links

http://ubuntu.com/security/notices/USN-5960-1

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.