RHEL 2.1 : nss_ldap (RHSA-2002:180)

high Nessus Plugin ID 12321

Synopsis

The remote Red Hat host is missing a security update.

Description

Updated nss_ldap packages are now available for Red Hat Linux Advanced Server 2.1. These updates fix a potential buffer overflow which can occur when nss_ldap is set to configure itself using information stored in DNS as well as a format string bug in logging functions used in pam_ldap.

[Updated 09 Jan 2003] Added fixed packages for the Itanium (IA64) architecture.

[Updated 06 Feb 2003] Added fixed packages for Advanced Workstation 2.1

nss_ldap is a set of C library extensions that allow X.500 and LDAP directory servers to be used as a primary source of aliases, ethers, groups, hosts, networks, protocols, users, RPCs, services, and shadow passwords (instead of or in addition to using flat files or NIS).

When versions of nss_ldap prior to nss_ldap-198 are configured without a value for the 'host' setting, nss_ldap will attempt to configure itself by using SRV records stored in DNS. When parsing the results of the DNS query, nss_ldap does not check that data returned by the server will fit into an internal buffer, leaving it vulnerable to a buffer overflow The Common Vulnerabilities and Exposures project has assigned the name CVE-2002-0825 to this issue.

When versions of nss_ldap prior to nss_ldap-199 are configured without a value for the 'host' setting, nss_ldap will attempt to configure itself by using SRV records stored in DNS. When parsing the results of the DNS query, nss_ldap does not check that the data returned has not been truncated by the resolver libraries to avoid a buffer overflow, and may attempt to parse more data than is actually available, leaving it vulnerable to a read buffer overflow.

Versions of pam_ldap prior to version 144 include a format string bug in the logging function. The packages included in this erratum update pam_ldap to version 144, fixing this bug. The Common Vulnerabilities and Exposures project has assigned the name CVE-2002-0374 to this issue.

All users of nss_ldap should update to these errata packages which are not vulnerable to the above issues. These packages are based on nss_ldap-189 with the addition of a backported security patch and pam_ldap version 144.

Thanks to the nss_ldap and pam_ldap team at padl.com for providing information about these issues.

Solution

Update the affected nss_ldap package.

Plugin Details

Severity: High

ID: 12321

File Name: redhat-RHSA-2002-180.nasl

Version: 1.26

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 7/6/2004

Updated: 1/14/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.8

CVSS v2

Risk Factor: High

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:nss_ldap, cpe:/o:redhat:enterprise_linux:2.1

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Patch Publication Date: 2/5/2003

Vulnerability Publication Date: 5/29/2002

Reference Information

CVE: CVE-2002-0374, CVE-2002-0825

CERT: 738331

RHSA: 2002:180

Detections

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