Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2020-13943 |
CWE-ID | CWE-399 |
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: #VU47516
Risk: Medium
CVSSv3.1:
CVE-ID: CVE-2020-13943
CWE-ID:
CWE-399 - Resource Management Errors
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to improper management of internal resources within the application when processing HTTP/2 requests. If an HTTP/2 client exceeded the agreed maximum number of concurrent streams for a connection (in violation of the HTTP/2 protocol), it was possible that a subsequent request made on that connection could contain HTTP headers - including HTTP/2 pseudo headers - from a previous request rather than the intended headers. This could lead to users seeing responses for unexpected resources.
MitigationInstall updates from vendor's website.
Vulnerable software versionsApache Tomcat: 10.0.0-M1 - 10.0.0.0-M1, 9.0.0 - 9.0.37, 8.5.0 - 8.5.57
http://seclists.org/oss-sec/2020/q4/42
Can this vulnerability be exploited remotely?
How the attacker can exploit this vulnerability?
Is there known malware, which exploits this vulnerability?