#VU93732 Resource management error in Apache Tomcat
Vulnerability identifier: #VU93732
Vulnerability risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-399
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Apache Tomcat
Server applications /
Web servers
Vendor: Apache Foundation
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper management of internal resources within the application when handling HTTP/2 stream. A remote attacker can initiate multiple HTTP/2 connections to the server that are remain open and perform a denial of service (DoS) attack.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Apache Tomcat: 9.0.0-M1 - 9.0.89, 10.1.0-M1 - 10.1.24, 11.0.0-M1 - 11.0.0-M20
External links
http://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.90
http://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.25
http://lists.apache.org/thread/hmw3txqzzbc1yp2t5cg4dsws0n92ly0f
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
