Rapid7 Vulnerability & Exploit Database

FreeBSD: VID-09B7CD39-47BD-11EE-8E38-002590C1F29C (CVE-2023-25136): FreeBSD -- OpenSSH pre-authentication double free

Free InsightVM Trial No Credit Card Necessary
Watch Demo See how it all works
Back to Search

FreeBSD: VID-09B7CD39-47BD-11EE-8E38-002590C1F29C (CVE-2023-25136): FreeBSD -- OpenSSH pre-authentication double free

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
02/03/2023
Created
09/05/2023
Added
08/31/2023
Modified
08/31/2023

Description

OpenSSH server (sshd) 9.1 introduced a double-free vulnerability during options.kex_algorithms handling. This is fixed in OpenSSH 9.2. The double free can be leveraged, by an unauthenticated remote attacker in the default configuration, to jump to any location in the sshd address space. One third-party report states "remote code execution is theoretically possible."

Solution(s)

  • freebsd-upgrade-base-12_4-release-p2

References

  • CVE-2023-25136

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
Free InsightVM Trial View All Features

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;