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Red Hat 8: RHSA-2023-4419 Important: OpenSSH Remote Execution

red hat
Calendar Grey August 1, 2023
Dist Redhat Esm H88
Urgent OpenSSH security patch released for Red Hat Enterprise Linux 8. Safeguard your systems from potential vulnerabilities.
An update for openssh is now available for Red Hat Enterprise Linux 8

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 remote execution openssh risk mitigation important update RCE issue

References

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

Package List

Red Hat Enterprise Linux AppStream (v. 8):
aarch64: openssh-askpass-8.0p1-19.el8_8.aarch64.rpm openssh-askpass-debuginfo-8.0p1-19.el8_8.aarch64.rpm openssh-cavs-debuginfo-8.0p1-19.el8_8.aarch64.rpm openssh-clients-debuginfo-8.0p1-19.el8_8.aarch64.rpm openssh-debuginfo-8.0p1-19.el8_8.aarch64.rpm openssh-debugsource-8.0p1-19.el8_8.aarch64.rpm openssh-keycat-debuginfo-8.0p1-19.el8_8.aarch64.rpm openssh-ldap-debuginfo-8.0p1-19.el8_8.aarch64.rpm openssh-server-debuginfo-8.0p1-19.el8_8.aarch64.rpm pam_ssh_agent_auth-debuginfo-0.10.3-7.19.el8_8.aarch64.rpm
ppc64le: openssh-askpass-8.0p1-19.el8_8.ppc64le.rpm openssh-askpass-debuginfo-8.0p1-19.el8_8.ppc64le.rpm openssh-cavs-debuginfo-8.0p1-19.el8_8.ppc64le.rpm openssh-clients-debuginfo-8.0p1-19.el8_8.ppc64le.rpm openssh-debuginfo-8.0p1-19.el8_8.ppc64le.rpm openssh-debugsource-8.0p1-19.el8_8.ppc64le.rpm openssh-keycat-debuginfo-8.0p1-19.el8_8.ppc64le.rpm openssh-ldap-debuginfo-8.0p1-19.el8_8.ppc64le.rpm openssh-server-debuginfo-8.0p1-19.el8_8.ppc64le.rpm pam_ssh_agent_auth-debuginfo-0.10.3-7.19.el8_8.ppc64le.rpm
s390x: openssh-askpass-8.0p1-19.el8_8.s390x.rpm openssh-askpass-debuginfo-8.0p1-19.el8_8.s390x.rpm openssh-cavs-debuginfo-8.0p1-19.el8_8.s390x.rpm openssh-clients-debuginfo-8.0p1-19.el8_8.s390x.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2023:4419-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:4419
Issue date: 2023-08-01

Topic

An update for openssh is now available for Red Hat Enterprise Linux 8.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 remote execution openssh risk mitigation important update RCE issue

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

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

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