CVE-2020-35471: High severity envoy proxy vulnerability
Envoy before 1.16.1 mishandles dropped and truncated datagrams, as demonstrated by a segmentation fault for a UDP packet size larger than 1500.
Other sources
Envoy Proxy is vulnerable to a denial of service, caused by the improper handling of dropped and truncated datagrams. By sending an overly large UDP packet, a remote attacker could exploit this vulnerability to cause a denial of service.
— IBM
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is the vulnerability ID for this Envoy Proxy vulnerability?
The vulnerability ID for this Envoy Proxy vulnerability is CVE-2020-35471.
What is the severity level of CVE-2020-35471?
The severity level of CVE-2020-35471 is high, with a CVSS score of 7.5.
What is the affected software by CVE-2020-35471?
The affected software by CVE-2020-35471 includes Envoy Proxy versions up to 1.16.1 and IBM Cloud Pak for Security (CP4S) versions up to 1.6.0.1.
How does CVE-2020-35471 cause a denial of service?
CVE-2020-35471 causes a denial of service by mishandling dropped and truncated datagrams, allowing a remote attacker to exploit the vulnerability by sending an overly large UDP packet.
Where can I find more information about CVE-2020-35471?
You can find more information about CVE-2020-35471 on the GitHub links provided: [link1](https://github.com/envoyproxy/envoy/compare/v1.16.0...v1.16.1), [link2](https://github.com/envoyproxy/envoy/issues/14113), [link3](https://github.com/envoyproxy/envoy/pull/14122).