Vulnerability identifier: #VU61017

Vulnerability 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

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Twisted Web
Server applications / Web servers

Vendor: Twisted Matrix Labs

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error. A remote attacker can trigger memory corruption and cause a denial of service condition on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Twisted Web: 21.7.0 - 22.1.0

---

External links
http://github.com/twisted/twisted/commit/89c395ee794e85a9657b112c4351417850330ef9
http://github.com/twisted/twisted/security/advisories/GHSA-rv6r-3f5q-9rgx
http://twistedmatrix.com/trac/ticket/10284
http://github.com/twisted/twisted/releases/tag/twisted-22.2.0

---

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.