CVE-2021-42697
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductAkka Http Server
PublishedNov 2, 2021
First seenNov 2, 2021
How to fix
Update
- akka http_server10.1.15, 10.2.7 or later
- com.typesafe.akka:akka-http-core_2.1310.1.15, 10.2.7 or later
- com.typesafe.akka:akka-http-core_2.1210.1.15, 10.2.7 or later
- com.typesafe.akka:akka-http-core_2.1110.1.15 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| akka http_server | 10.1.0 ≤ v < 10.1.15, 10.2.0 ≤ v < 10.2.7 | 10.1.15, 10.2.7 |
| com.typesafe.akka:akka-http-core_2.13.0-RC3Maven | 10.1.0 ≤ v | — |
| com.typesafe.akka:akka-http-core_2.13.0-RC2Maven | 10.1.0 ≤ v | — |
| com.typesafe.akka:akka-http-core_2.13.0-M5Maven | 10.1.0 ≤ v | — |
| com.typesafe.akka:aakka-http-core_2.13.0-M3Maven | 10.1.0 ≤ v | — |
| com.typesafe.akka:akka-http-core_2.13Maven | 10.1.0 ≤ v < 10.1.15, 10.2.0-M1 ≤ v < 10.2.7 | 10.1.15, 10.2.7 |
| com.typesafe.akka:akka-http-core_2.12Maven | 10.1.0 ≤ v < 10.1.15, 10.2.0-M1 ≤ v < 10.2.7 | 10.1.15, 10.2.7 |
| com.typesafe.akka:akka-http-core_2.11Maven | 10.1.0 ≤ v < 10.1.15 | 10.1.15 |
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