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Red Hat: RHSA-2018-3056-01 Moderate: Samba Security Update

red hat
Calendar Grey October 30, 2018
Dist Redhat Esm H88
An update addressing security vulnerabilities and bug corrections is now released for Red Hat Enterprise Linux 7 regarding samba, carrying a moderate severity rating.
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 (4.8.3). (BZ#1558560)
Security Fix(es):
* samba: Weak authentication protocol regression (CVE-2018-1139)
* samba: Insufficient input validation in libsmbclient (CVE-2018-10858)
* samba: NULL pointer dereference in printer server process (CVE-2018-1050)
For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.
Red Hat would like to thank the Samba project for reporting CVE-2018-1050. The CVE-2018-1139 issue was discovered by Vivek Das (Red Hat).
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.6 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory moderate Red Hat bug fix samba authentication issue input validation

References

https://access.redhat.com/security/cve/CVE-2018-1050 https://access.redhat.com/security/cve/CVE-2018-1139 https://access.redhat.com/security/cve/CVE-2018-10858 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.6_release_notes/index

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: samba-4.8.3-4.el7.src.rpm
noarch: samba-common-4.8.3-4.el7.noarch.rpm
x86_64: libsmbclient-4.8.3-4.el7.i686.rpm libsmbclient-4.8.3-4.el7.x86_64.rpm libwbclient-4.8.3-4.el7.i686.rpm libwbclient-4.8.3-4.el7.x86_64.rpm samba-client-4.8.3-4.el7.x86_64.rpm samba-client-libs-4.8.3-4.el7.i686.rpm samba-client-libs-4.8.3-4.el7.x86_64.rpm samba-common-libs-4.8.3-4.el7.x86_64.rpm samba-common-tools-4.8.3-4.el7.x86_64.rpm samba-debuginfo-4.8.3-4.el7.i686.rpm samba-debuginfo-4.8.3-4.el7.x86_64.rpm samba-krb5-printing-4.8.3-4.el7.x86_64.rpm samba-libs-4.8.3-4.el7.i686.rpm samba-libs-4.8.3-4.el7.x86_64.rpm samba-winbind-4.8.3-4.el7.x86_64.rpm samba-winbind-clients-4.8.3-4.el7.x86_64.rpm samba-winbind-modules-4.8.3-4.el7.i686.rpm samba-winbind-modules-4.8.3-4.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
noarch: samba-pidl-4.8.3-4.el7.noarch.rpm
x86_64: libsmbclient-devel-4.8.3-4.el7.i686.rpm libsmbclient-devel-4.8.3-4.el7.x86_64.rpm libwbclient-devel-4.8.3-4.el7.i686.rpm libwbclient-devel-4.8.3-4.el7.x86_64.rpm samba-4.8.3-4.el7.x86_64.rpm samba-dc-4.8.3-4.el7.x86_64.rpm samba-dc-libs-4.8.3-4.el7.x86_64.rpm samba-debuginfo-4.8.3-4.el7.i686.rpm samba-debuginfo-4.8.3-4.el7.x86_64.rpm samba-devel-4.8.3-4.el7.i686.rpm

Read the Full Advisory


Advisory ID: RHSA-2018:3056-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:3056
Issue date: 2018-10-30

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 bug fix samba authentication issue input validation

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

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, noarch, ppc64le, s390x

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, noarch, ppc64le, s390x

Bugs Fixed

1525511 - Fix idmap_rid dependency on trusted domain list

1532618 - Kept getting "smbd[process-id]: PANIC (pid ): internal error"

1538771 - CVE-2018-1050 samba: NULL pointer dereference in printer server process

1540457 - User login issue from one-way trusted domains has not been fixed

1558560 - Rebase samba in RHEL-7.6 to Samba 4.8.3

1558943 - winbind use 100%cpu and disfunctional

1570020 - coredump with dfsgetinfo

1575205 - net ads join crashing during DoDNSUpdate

1581016 - smbclient echos 'Try "help" to get a list of possible commands.' to tty

1582541 - Windows 10 can only authenticate against smbd's local SAM with NTLMv1

1589651 - CVE-2018-1139 samba: Weak authentication protocol regression

1612805 - CVE-2018-10858 samba: Insufficient input validation in libsmbclient

1614132 - smbd crashes with "assert failed: dirp->fsp->dptr->dir_hnd == dirp"

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