RHSA-2003:262

Vulnerability from csaf_redhat - Published: 2003-08-26 12:15 - Updated: 2025-11-21 17:26
Summary
Red Hat Security Advisory: pam_smb security update
Severity
Important
Notes
Topic: Updated pam_smb packages are now available which fix a security vulnerability (buffer overflow).
Details: 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 Enterprise Linux contains a version of pam_smb that is 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.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
CVE-2003-0686

Buffer overflow in PAM SMB module (pam_smb) 1.1.6 and earlier, when authenticating to a remote service, allows remote attackers to execute arbitrary code.

Affected products
Product Identifier Version Remediation
Red Hat Enterprise Linux AS (Advanced Server) version 2.1
Red Hat / Red Hat Enterprise Linux
 cpe:/o:redhat:enterprise_linux:2.1::as —
Vendor Fix fix
Red Hat Enterprise Linux ES version 2.1
Red Hat / Red Hat Enterprise Linux
 cpe:/o:redhat:enterprise_linux:2.1::es —
Vendor Fix fix
Red Hat Enterprise Linux WS version 2.1
Red Hat / Red Hat Enterprise Linux
 cpe:/o:redhat:enterprise_linux:2.1::ws —
Vendor Fix fix
Red Hat Linux Advanced Workstation 2.1
Red Hat / Red Hat Enterprise Linux
 cpe:/o:redhat:enterprise_linux:2.1::aw —
Vendor Fix fix
Threats
Impact Important
References
To clipboard 

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        "text": "The pam_smb module is a pluggable authentication module (PAM) used to\nauthenticate users using an external Server Message Block (SMB) server.\n\nA buffer overflow vulnerability has been found that affects unpatched\nversions of pam_smb up to and including 1.1.6. \n\nOn systems that use pam_smb and are configured to authenticate a\nremotely accessible service, an attacker can exploit this bug and\nremotely execute arbitrary code. The Common Vulnerabilities and Exposures\nproject (cve.mitre.org) has assigned the name CAN-2003-0686 to this issue.\n\nRed Hat Enterprise Linux contains a version of pam_smb that is vulnerable\nto this issue, however pam_smb is not enabled by default.\n\nUsers of pam_smb are advised to upgrade to these erratum packages, which\ncontain a patch to version 1.1.6 to correct this issue.\n\nRed Hat would like to thank Dave Airlie of the Samba team for notifying us\nof this issue.",
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