RHSA-2021:5082 — Security Advisory

Red Hat Security Advisory: samba security update

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Severity

Important

Red Hat Product Security

RHEL 8

Products

Official CSAF product identity

Published · December 13, 2021

Updated · June 28, 2026

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 impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

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: Active Directory (AD) domain user could become root on domain members (CVE-2020-25717)

  • samba: SMB1 client connections can be downgraded to plaintext authentication (CVE-2016-2124)

  • samba: Subsequent DCE/RPC fragment injection vulnerability (CVE-2021-23192)

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.

Related CVEs

RHSA-2021:5082 — Red Hat Security Advisory: samba security update | PulseLinux