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Red Hat 7: RHSA-2023-4382 Critical: OpenSSH Remote Code Execution

red hat
Calendar Grey August 1, 2023
Dist Redhat Esm H88
A significant update has been issued by Red Hat for OpenSSH, targeting a critical remote code execution vulnerability. Discover the steps to apply the latest patch immediately.
An update for openssh is now available for Red Hat Enterprise Linux 7

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

After installing this update, the OpenSSH server daemon (sshd) will be restarted automatically.

Summary

OpenSSH is an SSH protocol implementation supported by a number of Linux, UNIX, and similar operating systems. It includes the core files necessary for both the OpenSSH client and server.
Security Fix(es):
* openssh: Remote code execution in ssh-agent PKCS#11 support (CVE-2023-38408)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Topics%20covered

Topics Covered

security advisory red hat patch important openssh rce

References

https://access.redhat.com/security/cve/CVE-2023-38408 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: openssh-7.4p1-23.el7_9.src.rpm
x86_64: openssh-7.4p1-23.el7_9.x86_64.rpm openssh-askpass-7.4p1-23.el7_9.x86_64.rpm openssh-clients-7.4p1-23.el7_9.x86_64.rpm openssh-debuginfo-7.4p1-23.el7_9.x86_64.rpm openssh-keycat-7.4p1-23.el7_9.x86_64.rpm openssh-server-7.4p1-23.el7_9.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: openssh-cavs-7.4p1-23.el7_9.x86_64.rpm openssh-debuginfo-7.4p1-23.el7_9.i686.rpm openssh-debuginfo-7.4p1-23.el7_9.x86_64.rpm openssh-ldap-7.4p1-23.el7_9.x86_64.rpm openssh-server-sysvinit-7.4p1-23.el7_9.x86_64.rpm pam_ssh_agent_auth-0.10.3-2.23.el7_9.i686.rpm pam_ssh_agent_auth-0.10.3-2.23.el7_9.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: openssh-7.4p1-23.el7_9.src.rpm
x86_64: openssh-7.4p1-23.el7_9.x86_64.rpm openssh-clients-7.4p1-23.el7_9.x86_64.rpm openssh-debuginfo-7.4p1-23.el7_9.x86_64.rpm openssh-keycat-7.4p1-23.el7_9.x86_64.rpm openssh-server-7.4p1-23.el7_9.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64: openssh-askpass-7.4p1-23.el7_9.x86_64.rpm openssh-cavs-7.4p1-23.el7_9.x86_64.rpm openssh-debuginfo-7.4p1-23.el7_9.i686.rpm openssh-debuginfo-7.4p1-23.el7_9.x86_64.rpm openssh-ldap-7.4p1-23.el7_9.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2023:4382-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:4382
Issue date: 2023-08-01

Topic

An update for openssh is now available for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory red hat patch important openssh rce

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64

Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

Bugs Fixed

2224173 - CVE-2023-38408 openssh: Remote code execution in ssh-agent PKCS#11 support

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