Summary
It was discovered that Tomcat incorrectly handled request cancellation. A
remote attacker could possibly use this issue to cause tomcat9 to consume
resources, leading to a denial of service.
Fixed packages 3
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 20.04 LTS 20.04:LTS | tomcat9 | 9.0.31-1ubuntu0.9 |
| Ubuntu · 22.04 LTS 22.04:LTS | tomcat9 | 9.0.58-1ubuntu0.2 |
| Ubuntu · Pro 18.04 LTS Pro:18.04:LTS | tomcat9 | 9.0.16-3ubuntu0.18.04.2+esm5 |
Vulnerabilities 1
-
High 7.5
HTTP/2 Stream Cancellation Attack
The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
KEV Oct 10, 2023
References
-
report
https://ubuntu.com/security/CVE-2023-44487