CVE-2023-25136

Published Feb 3, 2023

Last updated 2 months ago

CVSS medium 6.5
SSH
Port (22)

Overview

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."
Source
cve@mitre.org
NVD status
Modified
Products
openssh, fedora, ontap_select_deploy_administration_utility, a250_firmware, 500f_firmware, c250_firmware

Risk scores

CVSS 3.1

Type
Primary
Base score
6.5
Impact score
4.2
Exploitability score
2.2
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
Severity
MEDIUM

Weaknesses

nvd@nist.gov
CWE-415
134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE-415

Social media

Hype score
Not currently trending

Configurations

References

Sources include official advisories and independent security research.