CVE-2023-25136

Medium

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."

SeverityMedium
CVSS6.5
Exploit probability—
ProductOpenbsd Openssh
PublishedFeb 3, 2023
First seenFeb 3, 2023
Weakness typeCWE-415CWE-415

How to fix

Affected products

ProductAffected versionsFixed in
openbsd openssh9.1—
fedoraproject fedora37, 38—
netapp ontap_select_deploy_administration_utilityNo range specified—
netapp a250_firmwareNo range specified—
netapp 500f_firmwareNo range specified—
netapp c250_firmwareNo range specified—

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