The OpenSSL project has rolled out fixes to contain two high-severity flaws in its widely used cryptography library that could result in a denial-of-service (DoS) and remote code execution.
The issues, tracked as CVE-2022-3602 and CVE-2022-3786, have been described as buffer overrun vulnerabilities that can be triggered during X.509 certificate verification by supplying a specially-crafted email address.
“In a TLS client, this can be triggered by connecting to a malicious server,” OpenSSL said in an advisory for CVE-2022-3786. “In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects.”
Versions 3.0.0 through 3.0.6 of the library are affected by the new flaws, which has been remediated in version 3.0.7. It’s worth noting that the commonly deployed OpenSSL 1.x versions are not vulnerable.
Per data shared by Censys, about 7,062 hosts are said to run a susceptible version of OpenSSL as of October 30, 2022, with a majority of those located in the U.S., Germany, Japan, China, Czechia, the U.K., France, Russia, Canada, and the Netherlands.
images from Hacker News