CVE-2021-42697

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-42697
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.

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References
Link Resource
http://packetstormsecurity.com/files/167018/Akka-HTTP-10.1.14-Denial-Of-Service.html Exploit Third Party Advisory VDB Entry
https://akka.io/blog/ Vendor Advisory
https://akka.io/blog/news/2021/11/02/akka-http-10.2.7-released Release Notes Vendor Advisory
https://akka.io/blog/news/2021/11/22/akka-http-10.1.15-released Release Notes Vendor Advisory
https://doc.akka.io/docs/akka-http/current/security/2021-CVE-2021-42697-stack-overflow-parsing-user-agent.html Vendor Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:akka:http_server:*:*:*:*:*:*:*:*
cpe:2.3:a:akka:http_server:*:*:*:*:*:*:*:*
History

13 Jun 2022, 15:41

Type Values Removed Values Added
References (MISC) http://packetstormsecurity.com/files/167018/Akka-HTTP-10.1.14-Denial-Of-Service.html - Exploit, Third Party Advisory (MISC) http://packetstormsecurity.com/files/167018/Akka-HTTP-10.1.14-Denial-Of-Service.html - Exploit, Third Party Advisory, VDB Entry

03 Jun 2022, 17:30

Type Values Removed Values Added
References (MISC) https://akka.io/blog/news/2021/11/22/akka-http-10.1.15-released - (MISC) https://akka.io/blog/news/2021/11/22/akka-http-10.1.15-released - Release Notes, Vendor Advisory
References (MISC) http://packetstormsecurity.com/files/167018/Akka-HTTP-10.1.14-Denial-Of-Service.html - (MISC) http://packetstormsecurity.com/files/167018/Akka-HTTP-10.1.14-Denial-Of-Service.html - Exploit, Third Party Advisory
CWE CWE-674

11 May 2022, 18:15

Type Values Removed Values Added
References
  • (MISC) http://packetstormsecurity.com/files/167018/Akka-HTTP-10.1.14-Denial-Of-Service.html -

03 May 2022, 16:04

Type Values Removed Values Added
CWE CWE-787 CWE-674

15 Apr 2022, 21:15

Type Values Removed Values Added
References
  • (MISC) https://akka.io/blog/news/2021/11/22/akka-http-10.1.15-released -
Summary Akka HTTP 10.1.x 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. 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.

04 Nov 2021, 14:51

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : 5.0
v3 : 7.5
CWE CWE-787
CPE cpe:2.3:a:akka:http_server:*:*:*:*:*:*:*:*
References (MISC) https://doc.akka.io/docs/akka-http/current/security/2021-CVE-2021-42697-stack-overflow-parsing-user-agent.html - (MISC) https://doc.akka.io/docs/akka-http/current/security/2021-CVE-2021-42697-stack-overflow-parsing-user-agent.html - Vendor Advisory
References (MISC) https://akka.io/blog/news/2021/11/02/akka-http-10.2.7-released - (MISC) https://akka.io/blog/news/2021/11/02/akka-http-10.2.7-released - Release Notes, Vendor Advisory
References (MISC) https://akka.io/blog/ - (MISC) https://akka.io/blog/ - Vendor Advisory

02 Nov 2021, 23:13

Type Values Removed Values Added
New CVE
Information

Published : 2021-11-02 22:15

Updated : 2023-12-10 14:09

NVD link : CVE-2021-42697

Mitre link : CVE-2021-42697

CVE.ORG link : CVE-2021-42697

JSON object : View

Products Affected

akka

  • http_server
CWE
CWE-674

Uncontrolled Recursion