Ubuntu update for python-werkzeug

Published: 2023-03-13

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-23934 CVE-2023-25577
CWE-ID	CWE-20 CWE-400
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Ubuntu Operating systems & Components / Operating system python-werkzeug (Ubuntu package) Operating systems & Components / Operating system package or component python3-werkzeug (Ubuntu package) Operating systems & Components / Operating system package or component
Vendor	Canonical Ltd.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU72340

Risk: Low

CVSSv4.0: 0.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-23934

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to insufficient validation of "nameless" cookies. A remote attacker can manipulate cookie values for an arbitrary domain.

Mitigation

Update the affected package python-werkzeug to the latest version.

Vulnerable software versions

Ubuntu: 16.04 - 22.10

python-werkzeug (Ubuntu package): before Ubuntu Pro

python3-werkzeug (Ubuntu package): before Ubuntu Pro

CPE2.3

External links

https://ubuntu.com/security/notices/USN-5948-1

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.

2) Resource exhaustion

EUVDB-ID: #VU72339

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-25577

CWE-ID: CWE-400 - Resource exhaustion