Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Akka | Http Server | >= 10.1.0, < 10.1.15 |
Related Weaknesses (CWE)
References
- http://packetstormsecurity.com/files/167018/Akka-HTTP-10.1.14-Denial-Of-Service.ExploitThird Party AdvisoryVDB Entry
- https://akka.io/blog/Vendor Advisory
- https://akka.io/blog/news/2021/11/02/akka-http-10.2.7-releasedRelease NotesVendor Advisory
- https://akka.io/blog/news/2021/11/22/akka-http-10.1.15-releasedRelease NotesVendor Advisory
- https://doc.akka.io/docs/akka-http/current/security/2021-CVE-2021-42697-stack-ovVendor Advisory
- http://packetstormsecurity.com/files/167018/Akka-HTTP-10.1.14-Denial-Of-Service.ExploitThird Party AdvisoryVDB Entry
- https://akka.io/blog/Vendor Advisory
- https://akka.io/blog/news/2021/11/02/akka-http-10.2.7-releasedRelease NotesVendor Advisory
- https://akka.io/blog/news/2021/11/22/akka-http-10.1.15-releasedRelease NotesVendor Advisory
- https://doc.akka.io/docs/akka-http/current/security/2021-CVE-2021-42697-stack-ovVendor Advisory
FAQ
What is CVE-2021-42697?
CVE-2021-42697 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 Us...
How severe is CVE-2021-42697?
CVE-2021-42697 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-42697?
Check the references section above for vendor advisories and patch information. Affected products include: Akka Http Server.