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."
References
Configurations
Configuration 1 (hide)
|
Configuration 2 (hide)
|
Configuration 3 (hide)
|
Configuration 4 (hide)
| AND |
|
Configuration 5 (hide)
| AND |
|
Configuration 6 (hide)
| AND |
|
History
14 Oct 2026, 23:17
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Information
Published : 2023-02-03 06:15
Updated : 2026-10-14 23:17
NVD link : CVE-2023-25136
Mitre link : CVE-2023-25136
CVE.ORG link : CVE-2023-25136
JSON object : View
Products Affected
openbsd
- openssh
netapp
- 500f_firmware
- a250
- c250_firmware
- c250
- ontap_select_deploy_administration_utility
- 500f
- a250_firmware
fedoraproject
- fedora
CWE
CWE-415
Double Free
