vulnerability

Oracle Linux: CVE-2023-38408: ELSA-2023-12711: openssh security update (CRITICAL) (Multiple Advisories)

Severity
10
CVSS
(AV:N/AC:L/Au:N/C:C/I:C/A:C)
Published
Jul 19, 2023
Added
Aug 3, 2023
Modified
Dec 3, 2025

Description

The PKCS#11 feature in ssh-agent in OpenSSH before 9.3p2 has an insufficiently trustworthy search path, leading to remote code execution if an agent is forwarded to an attacker-controlled system. (Code in /usr/lib is not necessarily safe for loading into ssh-agent.) NOTE: this issue exists because of an incomplete fix for CVE-2016-10009.
A vulnerability was found in OpenSSH. The PKCS#11 feature in the ssh-agent in OpenSSH has an insufficiently trustworthy search path, leading to remote code execution if an agent is forwarded to an attacker-controlled system (the code in /usr/lib is not necessarily safe for loading into ssh-agent). This flaw allows an attacker with control of the forwarded agent-socket on the server and the ability to write to the filesystem of the client host to execute arbitrary code with the privileges of the user running the ssh-agent.

Solutions

oracle-linux-upgrade-opensshoracle-linux-upgrade-openssh-askpassoracle-linux-upgrade-openssh-cavsoracle-linux-upgrade-openssh-clientsoracle-linux-upgrade-openssh-keycatoracle-linux-upgrade-openssh-ldaporacle-linux-upgrade-openssh-serveroracle-linux-upgrade-openssh-server-sysvinitoracle-linux-upgrade-pam-ssh-agent-auth
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