CVE-2021-42697

Published: Nov 2, 2021Modified: Nov 21, 2024

7.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability: 3.9 / Impact: 3.6

Source: NVD

Description

Akka HTTP 10.1.x before 10.1.15 and 10.2.x before 10.2.7 can encounter stack exhaustion while parsing HTTP headers, which allows a remote attacker to conduct a Denial of Service attack by sending a User-Agent header with deeply nested comments.

Affected (2)

Products: Akka: Http Server

Akka

1 product

Http Server

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Akka Http Server	From 10.1.0 to 10.1.15
Akka Http Server	From 10.2.0 to 10.2.7

Related CWEs

CWE-674

Uncontrolled Recursion

The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.

References (10)

http://packetstormsecurity.com/files/167018/Akka-HTTP-10.1.14-Denial-Of-Service.html

Source: cve@mitre.org

ExploitThird Party AdvisoryVDB Entry

https://akka.io/blog/

Source: cve@mitre.org

Vendor Advisory

https://akka.io/blog/news/2021/11/02/akka-http-10.2.7-released

Source: cve@mitre.org

Release NotesVendor Advisory

https://akka.io/blog/news/2021/11/22/akka-http-10.1.15-released

Source: cve@mitre.org

Release NotesVendor Advisory

https://doc.akka.io/docs/akka-http/current/security/2021-CVE-2021-42697-stack-overflow-parsing-user-agent.html

Source: cve@mitre.org

Vendor Advisory

http://packetstormsecurity.com/files/167018/Akka-HTTP-10.1.14-Denial-Of-Service.html