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RedHat Enterprise Linux 8: RHSA-2020:1878-01 Moderate: Samba Bug Fix

red hat
Calendar Grey April 28, 2020
Dist Redhat Esm H88
The recent samba security update for Red Hat Enterprise Linux 8 presents important enhancements along with a vital patch to address security vulnerabilities.
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.
The following packages have been upgraded to a later upstream version: samba (4.11.2). (BZ#1754409)
Security Fix(es):
* samba: Combination of parameters and permissions can allow user to escape from the share path definition (CVE-2019-10197)
* samba: smb client vulnerable to filenames containing path separators(CVE-2019-10218)
* 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 8.2 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory moderate security issue bug fix samba Red Hat Enterprise Linux network protocol

References

https://access.redhat.com/security/cve/CVE-2019-10197 https://access.redhat.com/security/cve/CVE-2019-10218 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/8/html/8.2_release_notes/index

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: openchange-2.3-24.el8.src.rpm
aarch64: openchange-2.3-24.el8.aarch64.rpm openchange-client-debuginfo-2.3-24.el8.aarch64.rpm openchange-debuginfo-2.3-24.el8.aarch64.rpm openchange-debugsource-2.3-24.el8.aarch64.rpm
ppc64le: openchange-2.3-24.el8.ppc64le.rpm openchange-client-debuginfo-2.3-24.el8.ppc64le.rpm openchange-debuginfo-2.3-24.el8.ppc64le.rpm openchange-debugsource-2.3-24.el8.ppc64le.rpm
x86_64: openchange-2.3-24.el8.i686.rpm openchange-2.3-24.el8.x86_64.rpm openchange-client-debuginfo-2.3-24.el8.i686.rpm openchange-client-debuginfo-2.3-24.el8.x86_64.rpm openchange-debuginfo-2.3-24.el8.i686.rpm openchange-debuginfo-2.3-24.el8.x86_64.rpm openchange-debugsource-2.3-24.el8.i686.rpm openchange-debugsource-2.3-24.el8.x86_64.rpm
Red Hat Enterprise Linux BaseOS (v. 8):
Source: samba-4.11.2-13.el8.src.rpm
aarch64: ctdb-4.11.2-13.el8.aarch64.rpm ctdb-debuginfo-4.11.2-13.el8.aarch64.rpm ctdb-tests-4.11.2-13.el8.aarch64.rpm ctdb-tests-debuginfo-4.11.2-13.el8.aarch64.rpm libsmbclient-4.11.2-13.el8.aarch64.rpm libsmbclient-debuginfo-4.11.2-13.el8.aarch64.rpm libwbclient-4.11.2-13.el8.aarch64.rpm libwbclient-debuginfo-4.11.2-13.el8.aarch64.rpm python3-samba-4.11.2-13.el8.aarch64.rpm

Read the Full Advisory


Advisory ID: RHSA-2020:1878-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:1878
Issue date: 2020-04-28

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 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 moderate security issue bug fix samba Red Hat Enterprise Linux network protocol

Relevant Releases Architectures

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

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

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

Bugs Fixed

1710980 - [RFE] Add support for Kerberos KCM credential cache in pam_winbind/winbindd

1746225 - CVE-2019-10197 samba: Combination of parameters and permissions can allow user to escape from the share path definition

1754409 - Rebase Samba to 4.11.x

1754575 - samba: Remove NSS wins and winbind dependency on librt/libpthread as workaround for glibc defect.

1755440 - Trusted domain enumeration stopped working after Microsoft patch update

1763137 - CVE-2019-10218 samba: smb client vulnerable to filenames containing path separators1776312 - Winbind is not restarted on package upgrade

1778770 - openchange needs to be rebuilt against samba-4.11.2-2.el8 and libldb-2.0.7-1.el8

1785134 - Libwbclient alternatives manual setting lost

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

1794461 - Test samba3.smbtorture_s3.plain.WINDOWS-BAD-SYMLINK fails

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