USN-4596-1

Advisory lineage Upstream: 8 Downstream: 0
Published: 21 Oct 2020, 13:55
Last modified:27 Apr 2026, 15:48

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

21 Oct 2020, 13:55
Published
Vulnerability first disclosed
27 Apr 2026, 15:48
Last Modified
Vulnerability information updated

Description

tomcat9 vulnerabilities It was discovered that Tomcat did not properly manage HTTP/2 streams. An attacker could possibly use this to cause Tomcat to consume resources, resulting in a denial of service. (CVE-2020-11996) It was discovered that Tomcat did not properly release the HTTP/1.1 processor after the upgrade to HTTP/2. An attacker could possibly use this to generate an OutOfMemoryException, resulting in a denial of service. (CVE-2020-13934) It was discovered that Tomcat did not properly validate the payload length in a WebSocket frame. An attacker could possibly use this to trigger an infinite loop, resulting in a denial of service. (CVE-2020-13935) It was discovered that Tomcat did not properly deserialize untrusted data. An attacker could possibly use this issue to execute arbitrary code. (CVE-2020-9484)

Affected Systems

  • ubuntu•tomcat9

    < 9.0.31-1ubuntu0.1

References (5)