Ubuntu update for twisted

Published: 2022-03-30

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2022-21712 CVE-2022-21716
CWE-ID	CWE-346 CWE-119
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Ubuntu Operating systems & Components / Operating system python3-twisted (Ubuntu package) Operating systems & Components / Operating system package or component python3-twisted-bin (Ubuntu package) Operating systems & Components / Operating system package or component python-twisted-bin (Ubuntu package) Operating systems & Components / Operating system package or component python-twisted (Ubuntu package) Operating systems & Components / Operating system package or component
Vendor	Canonical Ltd.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Origin validation error

EUVDB-ID: #VU61611

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-21712

CWE-ID: CWE-346 - Origin Validation Error

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to origin validation error in the "twited.web.RedirectAgent" and "twisted.web.BrowserLikeRedirectAgent" functions. A remote attacker attacker can trick the victim to click on a specially crafted link and obtain cookies and authorization headers.

Mitigation

Update the affected package twisted to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 21.10

python3-twisted (Ubuntu package): before 20.3.0-7ubuntu1.1

python3-twisted-bin (Ubuntu package): before 20.3.0-7ubuntu1.1

python-twisted-bin (Ubuntu package): before 17.9.0-2ubuntu0.3

python-twisted (Ubuntu package): before 17.9.0-2ubuntu0.3

External links

http://ubuntu.com/security/notices/USN-5354-1

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) Buffer overflow

EUVDB-ID: #VU61017

Risk: Medium

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

CVE-ID: CVE-2022-21716

CWE-ID: CWE-119 - Memory corruption