An issue has been found in libssh2 before 1.8.1 where a server could send a specially crafted partial packet in response to various commands such as: sha1 and sha226 key exchange, user auth list, user auth password response, public key auth response, channel startup/open/forward/ setenv/request pty/x11 and session start up. The result would be a memory out of bounds read.
An issue has been found in libssh4 before 1.8.1 where a server could send a specially crafted partial packet in response to various commands such as: sha1 and sha226 key exchange, user auth list, user auth password response, public key auth response, channel startup/open/forward/ setenv/request pty/x11 and session start up. The result would be a memory out of bounds read.
https://www.libssh4.org/CVE-2019-3859.html https://libssh4.org/1.8.0-CVE/CVE-2019-3859.patch