Moderate: samba security, bug fix, and enhancement update

Related Vulnerabilities: CVE-2022-32742  

Synopsis

Moderate: samba security, bug fix, and enhancement update

Type/Severity

Security Advisory: Moderate

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Topic

An update for samba is now available for Red Hat Enterprise Linux 9.

Red Hat Product Security has rated this update as having a security impact of Moderate. 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.

The following packages have been upgraded to a later upstream version: samba (4.16.4). (BZ#2077487)

Security Fix(es):

  • samba: server memory information leak via SMB1 (CVE-2022-32742)

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.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.1 Release Notes linked from the References section.

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.

Affected Products

  • Red Hat Enterprise Linux Resilient Storage for x86_64 9 x86_64
  • Red Hat Enterprise Linux for x86_64 9 x86_64
  • Red Hat Enterprise Linux for IBM z Systems 9 s390x
  • Red Hat Enterprise Linux for Power, little endian 9 ppc64le
  • Red Hat Enterprise Linux Resilient Storage for IBM z Systems 9 s390x
  • Red Hat Enterprise Linux Resilient Storage for Power, little endian 9 ppc64le
  • Red Hat Enterprise Linux for ARM 64 9 aarch64
  • Red Hat CodeReady Linux Builder for x86_64 9 x86_64
  • Red Hat CodeReady Linux Builder for Power, little endian 9 ppc64le
  • Red Hat CodeReady Linux Builder for ARM 64 9 aarch64
  • Red Hat CodeReady Linux Builder for IBM z Systems 9 s390x

Fixes

  • BZ - 2065376 - [Regression] `create krb5 conf = yes` doesn't work with a single KDC [rhel-9.1.0]
  • BZ - 2074891 - /etc/samba/smbusers erroneously applies unix group memberships to user account entries
  • BZ - 2076504 - PAM Kerberos authentication incorrectly fails with a clock skew error
  • BZ - 2077487 - Rebase Samba to the the latest 4.16.x release
  • BZ - 2078838 - samba.conf's force user issue when the user only exist in the active directory and not locally
  • BZ - 2096813 - Printer displays only after 300 seconds timeout (WERR_INVALID_PRINTER_NAME)
  • BZ - 2097655 - The pcap background queue process should not be stopped
  • BZ - 2106279 - Crash in rpcd_classic - NULL pointer deference in mangle_is_mangled()
  • BZ - 2108196 - CVE-2022-32742 samba: server memory information leak via SMB1
  • BZ - 2121317 - python3-samba requires samba and that is a bug