MGASA-2020-0331

Advisory lineage Upstream: 3 Downstream: 0
Published: 18 Aug 2020, 18:47
Last modified:16 Apr 2026, 04:25

Vulnerability Summary

Overall Risk (default)
minimal
0/100
CVSS Score
No data
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

18 Aug 2020, 18:47
Published
Vulnerability first disclosed
16 Apr 2026, 04:25
Last Modified
Vulnerability information updated

Description

Updated tomcat packages fix security vulnerability A specially crafted sequence of HTTP/2 requests could trigger high CPU usage for several seconds. If a sufficient number of such requests were made on concurrent HTTP/2 connections, the server could become unresponsive (CVE-2020-11996). An h2c direct connection did not release the HTTP/1.1 processor after the upgrade to HTTP/2. If a sufficient number of such requests were made, an OutOfMemoryException could occur leading to a denial of service (CVE-2020-13934). The payload length in a WebSocket frame was not correctly validated. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service (CVE-2020-13935).

Affected Systems

  • mageia•tomcat

    < 9.0.37-1.2.mga7

References (4)