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Red Hat 8 RHSA-2023-0838-01 Important: Samba Buffer Weakness Fix

red hat
Calendar Grey February 21, 2023
Scroller Redhat
Red Hat announces important samba patch release for Enterprise Linux 8 to address security flaws and enhance overall system reliability.
An update for samba 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 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 Red Hat update buffer overflow samba important security impact

References

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

Package List

Red Hat Enterprise Linux AppStream (v. 8):
aarch64: ctdb-debuginfo-4.16.4-4.el8_7.aarch64.rpm libsmbclient-debuginfo-4.16.4-4.el8_7.aarch64.rpm libwbclient-debuginfo-4.16.4-4.el8_7.aarch64.rpm python3-samba-debuginfo-4.16.4-4.el8_7.aarch64.rpm samba-client-debuginfo-4.16.4-4.el8_7.aarch64.rpm samba-client-libs-debuginfo-4.16.4-4.el8_7.aarch64.rpm samba-common-libs-debuginfo-4.16.4-4.el8_7.aarch64.rpm samba-common-tools-debuginfo-4.16.4-4.el8_7.aarch64.rpm samba-debuginfo-4.16.4-4.el8_7.aarch64.rpm samba-debugsource-4.16.4-4.el8_7.aarch64.rpm samba-krb5-printing-debuginfo-4.16.4-4.el8_7.aarch64.rpm samba-libs-debuginfo-4.16.4-4.el8_7.aarch64.rpm samba-test-debuginfo-4.16.4-4.el8_7.aarch64.rpm samba-test-libs-debuginfo-4.16.4-4.el8_7.aarch64.rpm samba-vfs-iouring-4.16.4-4.el8_7.aarch64.rpm samba-vfs-iouring-debuginfo-4.16.4-4.el8_7.aarch64.rpm samba-winbind-clients-debuginfo-4.16.4-4.el8_7.aarch64.rpm samba-winbind-debuginfo-4.16.4-4.el8_7.aarch64.rpm samba-winbind-krb5-locator-debuginfo-4.16.4-4.el8_7.aarch64.rpm samba-winbind-modules-debuginfo-4.16.4-4.el8_7.aarch64.rpm
ppc64le: ctdb-debuginfo-4.16.4-4.el8_7.ppc64le.rpm libsmbclient-debuginfo-4.16.4-4.el8_7.ppc64le.rpm libwbclient-debuginfo-4.16.4-4.el8_7.ppc64le.rpm python3-samba-debuginfo-4.16.4-4.el8_7.ppc64le.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2023:0838-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:0838
Issue date: 2023-02-21

Topic

An update for samba 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 update buffer overflow samba important security impact

Relevant Releases Architectures

Red Hat CodeReady Linux Builder (v. 8) - aarch64, ppc64le, s390x, x86_64

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

Red Hat Enterprise Linux BaseOS (v. 8) - 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

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