Skip to navigation

Security Advisory Updated pam_smb packages fix remote buffer overflow.

Advisory: RHSA-2003:261-07
Type: Security Advisory
Severity: N/A
Issued on: 2003-08-26
Last updated on: 2003-08-26
Affected Products: Red Hat Linux 7.2
Red Hat Linux 7.3
Red Hat Linux 8.0
Red Hat Linux 9
CVEs (cve.mitre.org): CVE-2003-0686

Details

Updated pam_smb packages are now available which fix a security
vulnerability (buffer overflow).

The pam_smb module is a pluggable authentication module (PAM) used to
authenticate users using an external Server Message Block (SMB) server.

A buffer overflow vulnerability has been found that affects unpatched
versions of pam_smb up to and including 1.1.6.

On systems that use pam_smb and are configured to authenticate a
remotely accessible service, an attacker can exploit this bug and
remotely execute arbitrary code. The Common Vulnerabilities and Exposures
project (cve.mitre.org) has assigned the name CAN-2003-0686 to this issue.

Red Hat Linux versions 7.2, 7.3, 8.0, and 9 ship with versions of pam_smb
that are vulnerable to this issue, however pam_smb is not enabled by default.

Users of pam_smb are advised to upgrade to these erratum packages, which
contain a patch to version 1.1.6 to correct this issue.

Red Hat would like to thank Dave Airlie of the Samba team for notifying us
of this issue.


Solution

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

To update all RPMs for your particular architecture, run:

rpm -Fvh [filenames]

where [filenames] is a list of the RPMs you wish to upgrade. Only those
RPMs which are currently installed will be updated. Those RPMs which are
not installed but included in the list will not be updated. Note that you
can also use wildcards (*.rpm) if your current directory *only* contains the
desired RPMs.

Please note that this update is also available via Red Hat Network. Many
people find this an easier way to apply updates. To use Red Hat Network,
launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.

Updated packages

Red Hat Linux 7.2

SRPMS:
ftp://updates.redhat.com/rhn/public/2703533/pam_smb/1.1.6-9.7/SRPMS/pam_smb-1.1.6-9.7.src.rpm
Missing file
    MD5: fd60d4b954d24b50901f5d8034246619
ftp://updates.redhat.com/rhn/repository/NULL/pam_smb/1.1.6-9.7/SRPMS/pam_smb-1.1.6-9.7.src.rpm
Missing file
    MD5: fd60d4b954d24b50901f5d8034246619
 
IA-32:
ftp://updates.redhat.com/rhn/repository/NULL/pam_smb/1.1.6-9.7/i386/pam_smb-1.1.6-9.7.i386.rpm
Missing file
    MD5: 98f57da32415dec75f43bbe57165cc62
 
IA-64:
ftp://updates.redhat.com/rhn/repository/NULL/pam_smb/1.1.6-9.7/ia64/pam_smb-1.1.6-9.7.ia64.rpm
Missing file
    MD5: 5e0ecb7ec7e24de6efc32ad8f439d0ff
 
Red Hat Linux 7.3

SRPMS:
ftp://updates.redhat.com/rhn/public/2703533/pam_smb/1.1.6-9.7/SRPMS/pam_smb-1.1.6-9.7.src.rpm
Missing file
    MD5: fd60d4b954d24b50901f5d8034246619
ftp://updates.redhat.com/rhn/repository/NULL/pam_smb/1.1.6-9.7/SRPMS/pam_smb-1.1.6-9.7.src.rpm
Missing file
    MD5: fd60d4b954d24b50901f5d8034246619
 
IA-32:
ftp://updates.redhat.com/rhn/repository/NULL/pam_smb/1.1.6-9.7/i386/pam_smb-1.1.6-9.7.i386.rpm
Missing file
    MD5: 98f57da32415dec75f43bbe57165cc62
 
Red Hat Linux 8.0

SRPMS:
ftp://updates.redhat.com/rhn/repository/NULL/pam_smb/1.1.6-9.8/SRPMS/pam_smb-1.1.6-9.8.src.rpm
Missing file
    MD5: 2e399b4016dac855bc3e01056c23a244
 
IA-32:
ftp://updates.redhat.com/rhn/repository/NULL/pam_smb/1.1.6-9.8/i386/pam_smb-1.1.6-9.8.i386.rpm
Missing file
    MD5: 8cb3feb19dd74abfb582546235ee9718
 
Red Hat Linux 9

SRPMS:
ftp://updates.redhat.com/rhn/repository/NULL/pam_smb/1.1.6-9.9/SRPMS/pam_smb-1.1.6-9.9.src.rpm
Missing file
    MD5: 5e31c7774d44716e4bc14f5d11eb54db
 
IA-32:
ftp://updates.redhat.com/rhn/repository/NULL/pam_smb/1.1.6-9.9/i386/pam_smb-1.1.6-9.9.i386.rpm
Missing file
    MD5: 11b99a275c316e57a3fdb68ab63c90f4
 

References



These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from:
https://www.redhat.com/security/team/key/#package

The Red Hat security contact is secalert@redhat.com. More contact details at http://www.redhat.com/security/team/contact/