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Red Hat 5 ELS: RHSA-2017:1272-01 Critical: Samba3x Remote Code Execution
red hat
May 24, 2017
An update for samba3x is now available for Red Hat Enterprise Linux 5 Extended Lifecycle Support
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) or
Common Internet File System (CIFS) protocol, which allows PC-compatible
machines to share files, printers, and other information.
Security Fix(es):
* A remote code execution flaw was found in Samba. A malicious
authenticated samba client, having write access to the samba share, could
use this flaw to execute arbitrary code as root. (CVE-2017-7494)
Red Hat would like to thank the Samba project for reporting this issue.
Upstream acknowledges steelo as the original reporter.
References
https://access.redhat.com/security/cve/CVE-2017-7494 https://access.redhat.com/security/updates/classification#important https://access.redhat.com/security/vulnerabilities/27e992a5-7725-4ae8-8d91-dc3fc937552a
Package List
Red Hat Enterprise Linux Server (v. 5 ELS):
Source:
samba3x-3.6.23-14.el5_11.src.rpm
i386:
samba3x-3.6.23-14.el5_11.i386.rpm
samba3x-client-3.6.23-14.el5_11.i386.rpm
samba3x-common-3.6.23-14.el5_11.i386.rpm
samba3x-debuginfo-3.6.23-14.el5_11.i386.rpm
samba3x-doc-3.6.23-14.el5_11.i386.rpm
samba3x-domainjoin-gui-3.6.23-14.el5_11.i386.rpm
samba3x-swat-3.6.23-14.el5_11.i386.rpm
samba3x-winbind-3.6.23-14.el5_11.i386.rpm
samba3x-winbind-devel-3.6.23-14.el5_11.i386.rpm
s390x:
samba3x-3.6.23-14.el5_11.s390x.rpm
samba3x-client-3.6.23-14.el5_11.s390x.rpm
samba3x-common-3.6.23-14.el5_11.s390x.rpm
samba3x-debuginfo-3.6.23-14.el5_11.s390.rpm
samba3x-debuginfo-3.6.23-14.el5_11.s390x.rpm
samba3x-doc-3.6.23-14.el5_11.s390x.rpm
samba3x-domainjoin-gui-3.6.23-14.el5_11.s390x.rpm
samba3x-swat-3.6.23-14.el5_11.s390x.rpm
samba3x-winbind-3.6.23-14.el5_11.s390.rpm
samba3x-winbind-3.6.23-14.el5_11.s390x.rpm
samba3x-winbind-devel-3.6.23-14.el5_11.s390.rpm
samba3x-winbind-devel-3.6.23-14.el5_11.s390x.rpm
x86_64:
samba3x-3.6.23-14.el5_11.x86_64.rpm
samba3x-client-3.6.23-14.el5_11.x86_64.rpm
samba3x-common-3.6.23-14.el5_11.x86_64.rpm
samba3x-debuginfo-3.6.23-14.el5_11.i386.rpm
samba3x-debuginfo-3.6.23-14.el5_11.x86_64.rpm
samba3x-doc-3.6.23-14.el5_11.x86_64.rpm
Read the Full Advisory
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Severity
important
Lowest
Low
Medium
High
Critical
Advisory ID: RHSA-2017:1272-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2017:1272
Issue date: 2017-05-24
Topic
An update for samba3x is now available for Red Hat Enterprise Linux 5Extended Lifecycle Support.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.
Relevant Releases Architectures
Red Hat Enterprise Linux Server (v. 5 ELS) - i386, s390x, x86_64
Bugs Fixed
1450347 - CVE-2017-7494 samba: Loading shared modules from any path in the system leading to RCE
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