Alerts This Week
Warning Icon 1 916
Alerts This Week
Warning Icon 1 916

RHEL 8.2 RHSA-2023:0638-01 Important: Samba NetLogon Weakness

red hat
Calendar Grey February 8, 2023
Dist Redhat Esm H88
Vital samba security patch for CentOS addresses critical flaws in network file sharing systems.
An update for samba is now available for Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Enterprise Linux 8.2 Telecommunications Update Service, and Red Hat Enterpris...

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 smb service will be restarted automatically.

Summary

Samba is an open-source implementation of the Server Message Block (SMB) protocol and the related Common Internet File System (CIFS) protocol, which allow PC-compatible machines to share files, printers, and various information.
Security Fix(es):
* samba: RC4/HMAC-MD5 NetLogon Secure Channel is weak and should be avoided (CVE-2022-38023)
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 samba important file sharing RHEL NetLogon

References

https://access.redhat.com/security/cve/CVE-2022-38023 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux BaseOS AUS (v. 8.2):
Source: samba-4.11.2-22.el8_2.src.rpm
aarch64: ctdb-4.11.2-22.el8_2.aarch64.rpm ctdb-debuginfo-4.11.2-22.el8_2.aarch64.rpm ctdb-tests-4.11.2-22.el8_2.aarch64.rpm ctdb-tests-debuginfo-4.11.2-22.el8_2.aarch64.rpm libsmbclient-4.11.2-22.el8_2.aarch64.rpm libsmbclient-debuginfo-4.11.2-22.el8_2.aarch64.rpm libwbclient-4.11.2-22.el8_2.aarch64.rpm libwbclient-debuginfo-4.11.2-22.el8_2.aarch64.rpm python3-samba-4.11.2-22.el8_2.aarch64.rpm python3-samba-debuginfo-4.11.2-22.el8_2.aarch64.rpm python3-samba-test-4.11.2-22.el8_2.aarch64.rpm samba-4.11.2-22.el8_2.aarch64.rpm samba-client-4.11.2-22.el8_2.aarch64.rpm samba-client-debuginfo-4.11.2-22.el8_2.aarch64.rpm samba-client-libs-4.11.2-22.el8_2.aarch64.rpm samba-client-libs-debuginfo-4.11.2-22.el8_2.aarch64.rpm samba-common-libs-4.11.2-22.el8_2.aarch64.rpm samba-common-libs-debuginfo-4.11.2-22.el8_2.aarch64.rpm samba-common-tools-4.11.2-22.el8_2.aarch64.rpm samba-common-tools-debuginfo-4.11.2-22.el8_2.aarch64.rpm samba-debuginfo-4.11.2-22.el8_2.aarch64.rpm samba-debugsource-4.11.2-22.el8_2.aarch64.rpm samba-krb5-printing-4.11.2-22.el8_2.aarch64.rpm samba-krb5-printing-debuginfo-4.11.2-22.el8_2.aarch64.rpm samba-libs-4.11.2-22.el8_2.aarch64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2023:0638-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:0638
Issue date: 2023-02-07

Topic

An update for samba is now available for Red Hat Enterprise Linux 8.2Advanced Update Support, Red Hat Enterprise Linux 8.2 TelecommunicationsUpdate Service, and Red Hat Enterprise Linux 8.2 Update Services for SAPSolutions.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 samba important file sharing RHEL NetLogon

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS AUS (v. 8.2) - aarch64, noarch, ppc64le, s390x, x86_64

Red Hat Enterprise Linux BaseOS E4S (v. 8.2) - aarch64, noarch, ppc64le, s390x, x86_64

Red Hat Enterprise Linux BaseOS TUS (v. 8.2) - aarch64, noarch, ppc64le, s390x, x86_64

Bugs Fixed

2154362 - CVE-2022-38023 samba: RC4/HMAC-MD5 NetLogon Secure Channel is weak and should be avoided

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here