Linux
ricdeh
•

CVE-2024-6387 OpenSSH Server Authentication Bypass

Open link in next tab

CVE - CVE-2024-6387

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-6387

The mission of the CVE® Program is to identify, define, and catalog publicly disclosed cybersecurity vulnerabilities.

A signal handler race condition was found in OpenSSH's server (sshd), where a client does not authenticate within LoginGraceTime seconds (120 by default, 600 in old OpenSSH versions), then sshd's SIGALRM handler is called asynchronously. However, this signal handler calls various functions that are not async-signal-safe, for example, syslog().

2 comments