7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.014 Low
EPSS
Percentile
86.6%
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.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2002:180. The text
# itself is copyright (C) Red Hat, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(12321);
script_version("1.26");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2002-0374", "CVE-2002-0825");
script_xref(name:"CERT", value:"738331");
script_xref(name:"RHSA", value:"2002:180");
script_name(english:"RHEL 2.1 : nss_ldap (RHSA-2002:180)");
script_summary(english:"Checks the rpm output for the updated package");
script_set_attribute(
attribute:"synopsis",
value:"The remote Red Hat host is missing a security update."
);
script_set_attribute(
attribute:"description",
value:
"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."
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2002-0374"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2002-0825"
);
# http://www.padl.com/Articles/PotentialBufferOverflowin.html
script_set_attribute(
attribute:"see_also",
value:"https://www.padl.com/Articles/PotentialBufferOverflowin.html"
);
# http://www.padl.com/OSS/pam_ldap.html
script_set_attribute(
attribute:"see_also",
value:"https://www.padl.com/OSS/pam_ldap.html"
);
# http://archives.neohapsis.com/archives/vulnwatch/2002-q2/0053.html
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?f52e807b"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/errata/RHSA-2002:180"
);
script_set_attribute(
attribute:"solution",
value:"Update the affected nss_ldap package."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:nss_ldap");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:2.1");
script_set_attribute(attribute:"vuln_publication_date", value:"2002/05/29");
script_set_attribute(attribute:"patch_publication_date", value:"2003/02/05");
script_set_attribute(attribute:"plugin_publication_date", value:"2004/07/06");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2004-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Red Hat Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^2\.1([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 2.1", "Red Hat " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);
if (cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i386", cpu);
yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo))
{
rhsa = "RHSA-2002:180";
yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
if (!empty_or_null(yum_report))
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : yum_report
);
exit(0);
}
else
{
audit_message = "affected by Red Hat security advisory " + rhsa;
audit(AUDIT_OS_NOT, audit_message);
}
}
else
{
flag = 0;
if (rpm_check(release:"RHEL2.1", cpu:"i386", reference:"nss_ldap-189-4")) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : rpm_report_get() + redhat_report_package_caveat()
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "nss_ldap");
}
}
Vendor | Product | Version | CPE |
---|---|---|---|
redhat | enterprise_linux | nss_ldap | p-cpe:/a:redhat:enterprise_linux:nss_ldap |
redhat | enterprise_linux | 2.1 | cpe:/o:redhat:enterprise_linux:2.1 |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2002-0374
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2002-0825
www.nessus.org/u?f52e807b
access.redhat.com/errata/RHSA-2002:180
access.redhat.com/security/cve/cve-2002-0374
access.redhat.com/security/cve/cve-2002-0825
www.padl.com/Articles/PotentialBufferOverflowin.html
www.padl.com/OSS/pam_ldap.html