Issued:

2013-11-21

Updated:

2013-11-21

RHSA-2013:1543 - Moderate: samba4 security and bug fix update

Synopsis

Moderate: samba4 security and bug fix update

Type/Severity

Security Advisory Moderate

Topic

Updated samba4 packages that fix one security issue and two bugs are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

Description

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.

An integer overflow flaw was found in the way Samba handled an Extended Attribute (EA) list provided by a client. A malicious client could send a specially crafted EA list that triggered an overflow, causing the server to loop and reprocess the list using an excessive amount of memory. (CVE-2013-4124)

Note: This issue did not affect the default configuration of the Samba server.

This update fixes the following bugs:

• When Samba was installed in the build root directory, the RPM target might not have existed. Consequently, the find-debuginfo.sh script did not create symbolic links for the libwbclient.so.debug module associated with the target. With this update, the paths to the symbolic links are relative so that the symbolic links are now created correctly. (BZ#882338)

• Previously, the samba4 packages were missing a dependency for the libreplace.so module which could lead to installation failures. With this update, the missing dependency has been added to the dependency list of the samba4 packages and installation now proceeds as expected. (BZ#911264)

All samba4 users are advised to upgrade to these updated packages, which contain a backported patch to correct these issues.

Solution

Before applying this update, make sure all previously-released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/site/articles/11258

Affected Products

Updated Packages

• samba4-winbind-4.0.0-58.el6.rc4.ppc64.rpm
• samba4-pidl-4.0.0-58.el6.rc4.s390x.rpm
• samba4-dc-4.0.0-58.el6.rc4.ppc64.rpm
• samba4-test-4.0.0-58.el6.rc4.x86_64.rpm
• samba4-4.0.0-58.el6.rc4.x86_64.rpm
• samba4-python-4.0.0-58.el6.rc4.ppc64.rpm
• samba4-debuginfo-4.0.0-58.el6.rc4.x86_64.rpm
• samba4-winbind-krb5-locator-4.0.0-58.el6.rc4.ppc64.rpm
• samba4-winbind-krb5-locator-4.0.0-58.el6.rc4.i686.rpm
• samba4-dc-libs-4.0.0-58.el6.rc4.i686.rpm
• samba4-libs-4.0.0-58.el6.rc4.i686.rpm
• samba4-swat-4.0.0-58.el6.rc4.i686.rpm
• samba4-test-4.0.0-58.el6.rc4.i686.rpm
• samba4-4.0.0-58.el6.rc4.s390x.rpm
• samba4-dc-4.0.0-58.el6.rc4.s390x.rpm
• samba4-winbind-4.0.0-58.el6.rc4.x86_64.rpm
• samba4-libs-4.0.0-58.el6.rc4.s390x.rpm
• samba4-debuginfo-4.0.0-58.el6.rc4.i686.rpm
• samba4-devel-4.0.0-58.el6.rc4.ppc64.rpm
• samba4-dc-libs-4.0.0-58.el6.rc4.ppc64.rpm
• samba4-devel-4.0.0-58.el6.rc4.x86_64.rpm
• samba4-4.0.0-58.el6.rc4.ppc64.rpm
• samba4-dc-4.0.0-58.el6.rc4.x86_64.rpm
• samba4-dc-4.0.0-58.el6.rc4.i686.rpm
• samba4-libs-4.0.0-58.el6.rc4.x86_64.rpm
• samba4-client-4.0.0-58.el6.rc4.x86_64.rpm
• samba4-devel-4.0.0-58.el6.rc4.i686.rpm
• samba4-python-4.0.0-58.el6.rc4.s390x.rpm
• samba4-test-4.0.0-58.el6.rc4.ppc64.rpm
• samba4-winbind-clients-4.0.0-58.el6.rc4.x86_64.rpm
• samba4-dc-libs-4.0.0-58.el6.rc4.x86_64.rpm
• samba4-winbind-clients-4.0.0-58.el6.rc4.s390x.rpm
• samba4-devel-4.0.0-58.el6.rc4.s390x.rpm
• samba4-swat-4.0.0-58.el6.rc4.s390x.rpm
• samba4-common-4.0.0-58.el6.rc4.ppc64.rpm
• samba4-winbind-4.0.0-58.el6.rc4.i686.rpm
• samba4-python-4.0.0-58.el6.rc4.x86_64.rpm
• samba4-swat-4.0.0-58.el6.rc4.x86_64.rpm
• samba4-dc-libs-4.0.0-58.el6.rc4.s390x.rpm
• samba4-4.0.0-58.el6.rc4.src.rpm
• samba4-winbind-clients-4.0.0-58.el6.rc4.ppc64.rpm
• samba4-client-4.0.0-58.el6.rc4.ppc64.rpm
• samba4-common-4.0.0-58.el6.rc4.s390x.rpm
• samba4-libs-4.0.0-58.el6.rc4.ppc64.rpm
• samba4-pidl-4.0.0-58.el6.rc4.i686.rpm
• samba4-pidl-4.0.0-58.el6.rc4.ppc64.rpm
• samba4-debuginfo-4.0.0-58.el6.rc4.ppc64.rpm
• samba4-client-4.0.0-58.el6.rc4.i686.rpm
• samba4-python-4.0.0-58.el6.rc4.i686.rpm
• samba4-winbind-krb5-locator-4.0.0-58.el6.rc4.s390x.rpm
• samba4-swat-4.0.0-58.el6.rc4.ppc64.rpm
• samba4-4.0.0-58.el6.rc4.i686.rpm
• samba4-debuginfo-4.0.0-58.el6.rc4.s390x.rpm
• samba4-winbind-clients-4.0.0-58.el6.rc4.i686.rpm
• samba4-common-4.0.0-58.el6.rc4.i686.rpm
• samba4-winbind-krb5-locator-4.0.0-58.el6.rc4.x86_64.rpm
• samba4-test-4.0.0-58.el6.rc4.s390x.rpm
• samba4-winbind-4.0.0-58.el6.rc4.s390x.rpm
• samba4-client-4.0.0-58.el6.rc4.s390x.rpm
• samba4-pidl-4.0.0-58.el6.rc4.x86_64.rpm
• samba4-common-4.0.0-58.el6.rc4.x86_64.rpm

Fixes

• This content is not included.BZ - 911264
• This content is not included.BZ - 984401

CVEs

• CVE-2013-4124

References

• https://access.redhat.com/security/updates/classification/#moderate

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.