Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.802
EPSS Ranking 99.0%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 5.0
References
- http://packetstormsecurity.com/files/167018/Akka-HTTP-10.1.14-Denial-Of-Service.html
- https://akka.io/blog/
- https://akka.io/blog/news/2021/11/02/akka-http-10.2.7-released
- https://akka.io/blog/news/2021/11/22/akka-http-10.1.15-released
- https://doc.akka.io/docs/akka-http/current/security/2021-CVE-2021-42697-stack-overflow-parsing-user-agent.html
- http://packetstormsecurity.com/files/167018/Akka-HTTP-10.1.14-Denial-Of-Service.html
- https://akka.io/blog/
- https://akka.io/blog/news/2021/11/02/akka-http-10.2.7-released
- https://akka.io/blog/news/2021/11/22/akka-http-10.1.15-released
- https://doc.akka.io/docs/akka-http/current/security/2021-CVE-2021-42697-stack-overflow-parsing-user-agent.html
Products affected by CVE-2021-42697
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cpe:2.3:a:akka:http_server:10.1.0
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cpe:2.3:a:akka:http_server:10.1.1
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cpe:2.3:a:akka:http_server:10.1.10
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cpe:2.3:a:akka:http_server:10.1.11
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cpe:2.3:a:akka:http_server:10.1.12
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cpe:2.3:a:akka:http_server:10.1.13
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cpe:2.3:a:akka:http_server:10.1.2
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cpe:2.3:a:akka:http_server:10.1.3
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cpe:2.3:a:akka:http_server:10.1.4
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cpe:2.3:a:akka:http_server:10.1.5
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cpe:2.3:a:akka:http_server:10.1.6
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cpe:2.3:a:akka:http_server:10.1.7
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cpe:2.3:a:akka:http_server:10.1.8
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cpe:2.3:a:akka:http_server:10.1.9
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cpe:2.3:a:akka:http_server:10.2.0
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cpe:2.3:a:akka:http_server:10.2.1
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cpe:2.3:a:akka:http_server:10.2.2
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cpe:2.3:a:akka:http_server:10.2.3
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cpe:2.3:a:akka:http_server:10.2.4
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cpe:2.3:a:akka:http_server:10.2.5
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cpe:2.3:a:akka:http_server:10.2.6