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CVE-2021-42697GHSA-3HW2-H67C-WQ66

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 at

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 10.1.15, 10.2.7
1 on Exploit-DB, 1 proof of concept on GitHub

Summary

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.

Timeline

  1. CVE published
  2. Public exploit on Exploit-DB

    EDB-50892

  3. Record last updated
  4. EPSS reached 10%

    FIRST estimates at least a 10% chance of exploitation in the next 30 days

Affected versions

  • n/a n/a

    Version range not reported

  • com.typesafe.akka:akka-http-core_2.13.0-RC3Maven

    From 10.1.0

  • com.typesafe.akka:akka-http-core_2.13.0-RC2Maven

    From 10.1.0

  • com.typesafe.akka:akka-http-core_2.13.0-M5Maven

    From 10.1.0

  • com.typesafe.akka:aakka-http-core_2.13.0-M3Maven

    From 10.1.0

  • com.typesafe.akka:akka-http-core_2.13Maven

    From 10.1.0 · fixed in 10.1.15

  • com.typesafe.akka:akka-http-core_2.13Maven

    From 10.2.0-M1 · fixed in 10.2.7

  • com.typesafe.akka:akka-http-core_2.12Maven

    From 10.1.0 · fixed in 10.1.15

  • com.typesafe.akka:akka-http-core_2.12Maven

    From 10.2.0-M1 · fixed in 10.2.7

  • com.typesafe.akka:akka-http-core_2.11Maven

    From 10.1.0 · fixed in 10.1.15

References 7

akka.io

doc.akka.io

packetstormsecurity.com

Exploit-DB

GitHub · cxosmo/CVE-2021-42697