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Red Hat Enterprise Linux 7: RHSA-2020:3981 Moderate Samba Conversion Flaw

red hat
Calendar Grey September 29, 2020
Dist Redhat Esm H88
Ubuntu Server 18.04 enhances nginx with low security implications and addresses file handling concerns.
An update for samba is now available for Red Hat Enterprise Linux 7

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.
The following packages have been upgraded to a later upstream version: samba (4.10.16). (BZ#1785121)
Security Fix(es):
* samba: Crash after failed character conversion at log level 3 or above (CVE-2019-14907)
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 7.9 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory bug fix samba Red Hat Enterprise Linux moderate severity security impact character conversion issue

References

https://access.redhat.com/security/cve/CVE-2019-14907 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.9_release_notes/index

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: samba-4.10.16-5.el7.src.rpm
noarch: samba-common-4.10.16-5.el7.noarch.rpm
x86_64: libsmbclient-4.10.16-5.el7.i686.rpm libsmbclient-4.10.16-5.el7.x86_64.rpm libwbclient-4.10.16-5.el7.i686.rpm libwbclient-4.10.16-5.el7.x86_64.rpm samba-client-4.10.16-5.el7.x86_64.rpm samba-client-libs-4.10.16-5.el7.i686.rpm samba-client-libs-4.10.16-5.el7.x86_64.rpm samba-common-libs-4.10.16-5.el7.i686.rpm samba-common-libs-4.10.16-5.el7.x86_64.rpm samba-common-tools-4.10.16-5.el7.x86_64.rpm samba-debuginfo-4.10.16-5.el7.i686.rpm samba-debuginfo-4.10.16-5.el7.x86_64.rpm samba-krb5-printing-4.10.16-5.el7.x86_64.rpm samba-libs-4.10.16-5.el7.i686.rpm samba-libs-4.10.16-5.el7.x86_64.rpm samba-winbind-4.10.16-5.el7.x86_64.rpm samba-winbind-clients-4.10.16-5.el7.x86_64.rpm samba-winbind-modules-4.10.16-5.el7.i686.rpm samba-winbind-modules-4.10.16-5.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
noarch: samba-pidl-4.10.16-5.el7.noarch.rpm
x86_64: libsmbclient-devel-4.10.16-5.el7.i686.rpm libsmbclient-devel-4.10.16-5.el7.x86_64.rpm libwbclient-devel-4.10.16-5.el7.i686.rpm libwbclient-devel-4.10.16-5.el7.x86_64.rpm samba-4.10.16-5.el7.x86_64.rpm samba-dc-4.10.16-5.el7.x86_64.rpm samba-dc-libs-4.10.16-5.el7.x86_64.rpm

Read the Full Advisory


Advisory ID: RHSA-2020:3981-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:3981
Issue date: 2020-09-29

Topic

An update for samba is now available for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory bug fix samba Red Hat Enterprise Linux moderate severity security impact character conversion issue

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - noarch, x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Resilient Storage (v. 7) - ppc64le, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - noarch, x86_64

Bugs Fixed

1737888 - Libwbclient alternatives manual setting lost

1776333 - CLI tools printing "Unable to initialize messaging context" running as non root

1785121 - Rebase Samba to the the latest 4.10.x maintenance release

1791207 - CVE-2019-14907 samba: Crash after failed character conversion at log level 3 or above

1791823 - wbinfo -K doesn't work for users of trusted domains/forests

1801496 - Missing directories in ctdb package

1813017 - Can't get 'log events generated from smbclient'

1828354 - After adding "additional dns hostname" to smb.conf it does not generate /etc/krb5.keytab with the proper SPN.

1828924 - Fix 'require_membership_of' documentation in pam_winbind manpages

1831986 - unprivileged user should be able to read-only to gencache.tdb instead of permission denied

1836427 - net ads join use of netbios+realm breaks GSSAPI authentication

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