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RedHat: RHSA-2020-1084-01 Moderate: Samba Security Issues

red hat
Calendar Grey March 31, 2020
Dist Redhat Esm H88
Debian issued a significant security alert regarding OpenSSH, tackling essential vulnerabilities and glitches affecting remote access.
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 (4.10.4). (BZ#1724991)
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)
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 7.8 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory moderate Red Hat samba security fix file sharing

References

https://access.redhat.com/security/cve/CVE-2019-10197 https://access.redhat.com/security/cve/CVE-2019-10218 https://access.redhat.com/security/updates/classification#moderate https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/7.8_release_notes/index

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: samba-4.10.4-10.el7.src.rpm
noarch: samba-common-4.10.4-10.el7.noarch.rpm
x86_64: libsmbclient-4.10.4-10.el7.i686.rpm libsmbclient-4.10.4-10.el7.x86_64.rpm libwbclient-4.10.4-10.el7.i686.rpm libwbclient-4.10.4-10.el7.x86_64.rpm samba-client-4.10.4-10.el7.x86_64.rpm samba-client-libs-4.10.4-10.el7.i686.rpm samba-client-libs-4.10.4-10.el7.x86_64.rpm samba-common-libs-4.10.4-10.el7.x86_64.rpm samba-common-tools-4.10.4-10.el7.x86_64.rpm samba-debuginfo-4.10.4-10.el7.i686.rpm samba-debuginfo-4.10.4-10.el7.x86_64.rpm samba-krb5-printing-4.10.4-10.el7.x86_64.rpm samba-libs-4.10.4-10.el7.i686.rpm samba-libs-4.10.4-10.el7.x86_64.rpm samba-winbind-4.10.4-10.el7.x86_64.rpm samba-winbind-clients-4.10.4-10.el7.x86_64.rpm samba-winbind-modules-4.10.4-10.el7.i686.rpm samba-winbind-modules-4.10.4-10.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
noarch: samba-pidl-4.10.4-10.el7.noarch.rpm
x86_64: libsmbclient-devel-4.10.4-10.el7.i686.rpm libsmbclient-devel-4.10.4-10.el7.x86_64.rpm libwbclient-devel-4.10.4-10.el7.i686.rpm libwbclient-devel-4.10.4-10.el7.x86_64.rpm samba-4.10.4-10.el7.x86_64.rpm samba-dc-4.10.4-10.el7.x86_64.rpm samba-dc-libs-4.10.4-10.el7.x86_64.rpm samba-debuginfo-4.10.4-10.el7.i686.rpm

Read the Full Advisory


Advisory ID: RHSA-2020:1084-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:1084
Issue date: 2020-03-31

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 moderate Red Hat samba security fix file sharing

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

1497809 - [RFE] smbstatus -L does not resolve UIDs to names

1595277 - man for net doesn't have net ads lookup

1657428 - Window's client cannot connect samba-4.8.3-4 using hostname. IP connection works fine

1663064 - AD Permissions required to join Linux computer to domain using realmd with samba in an hardened AD environment.

1714947 - idmap_tdb2 stops working after some time

1724991 - Rebase Samba to the same version as in RHEL 8.1

1740986 - Samba 4.9.1-6: Failed to create BUILTIN\Guests group NT_STATUS_ACCESS_DENIED!

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

1753254 - Trusted domain enumeration stopped working after Microsoft patch update

1763137 - CVE-2019-10218 samba: smb client vulnerable to filenames containing path separators

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