Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-41079 |
CWE-ID | CWE-835 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Apache Tomcat Server applications / Web servers |
Vendor | Apache Foundation |
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU56634
Risk: Medium
CVSSv3.1:
CVE-ID: CVE-2021-41079
CWE-ID:
CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop when processing certain TLS packets. A remote attacker can send a specially crafted packet to the application, consume all available system resources and cause denial of service conditions.
Successful exploitation of vulnerability requires that Apache Tomcat is configured to use NIO+OpenSSL or NIO2+OpenSSL for TLS.
Install updates from vendor's website.
Vulnerable software versionsApache Tomcat: 10.0.0 - 10.0.2, 9.0.0 - 9.0.43, 8.5.0 - 8.5.63
Can this vulnerability be exploited remotely?
How the attacker can exploit this vulnerability?
Is there known malware, which exploits this vulnerability?