CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS
Percentile
97.9%
Clients sending negotiation requests with invalid flags could crash the kerberos server (CVE-2009-0845).
GSS-API clients could crash when reading from an invalid address space (CVE-2009-0844).
Invalid length checks could crash applications using the kerberos ASN.1 parser (CVE-2009-0847).
Under certain circumstances the ASN.1 parser could free an uninitialized pointer which could crash a kerberos server or even lead to execution of arbitrary code (CVE-2009-0846).
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update krb5-740.
#
# The text description of this plugin is (C) SUSE LLC.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(40253);
script_version("1.12");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2009-0844", "CVE-2009-0845", "CVE-2009-0846", "CVE-2009-0847");
script_name(english:"openSUSE Security Update : krb5 (krb5-740)");
script_summary(english:"Check for the krb5-740 patch");
script_set_attribute(
attribute:"synopsis",
value:"The remote openSUSE host is missing a security update."
);
script_set_attribute(
attribute:"description",
value:
"Clients sending negotiation requests with invalid flags could crash
the kerberos server (CVE-2009-0845).
GSS-API clients could crash when reading from an invalid address space
(CVE-2009-0844).
Invalid length checks could crash applications using the kerberos
ASN.1 parser (CVE-2009-0847).
Under certain circumstances the ASN.1 parser could free an
uninitialized pointer which could crash a kerberos server or even lead
to execution of arbitrary code (CVE-2009-0846)."
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.novell.com/show_bug.cgi?id=485894"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.novell.com/show_bug.cgi?id=486722"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.novell.com/show_bug.cgi?id=486723"
);
script_set_attribute(attribute:"solution", value:"Update the affected krb5 packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
script_cwe_id(20, 119, 189);
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-32bit");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-apps-clients");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-apps-servers");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-client");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-devel-32bit");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-server");
script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:11.1");
script_set_attribute(attribute:"patch_publication_date", value:"2009/04/06");
script_set_attribute(attribute:"plugin_publication_date", value:"2009/07/21");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2009-2021 Tenable Network Security, Inc.");
script_family(english:"SuSE Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE");
if (release !~ "^(SUSE11\.1)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "11.1", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);
flag = 0;
if ( rpm_check(release:"SUSE11.1", reference:"krb5-1.6.3-132.5.1") ) flag++;
if ( rpm_check(release:"SUSE11.1", reference:"krb5-apps-clients-1.6.3-132.5.1") ) flag++;
if ( rpm_check(release:"SUSE11.1", reference:"krb5-apps-servers-1.6.3-132.5.1") ) flag++;
if ( rpm_check(release:"SUSE11.1", reference:"krb5-client-1.6.3-132.5.1") ) flag++;
if ( rpm_check(release:"SUSE11.1", reference:"krb5-devel-1.6.3-132.5.1") ) flag++;
if ( rpm_check(release:"SUSE11.1", reference:"krb5-server-1.6.3-132.5.1") ) flag++;
if ( rpm_check(release:"SUSE11.1", cpu:"x86_64", reference:"krb5-32bit-1.6.3-132.5.1") ) flag++;
if ( rpm_check(release:"SUSE11.1", cpu:"x86_64", reference:"krb5-devel-32bit-1.6.3-132.5.1") ) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
else security_hole(0);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "krb5");
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0844
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0845
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0846
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0847
bugzilla.novell.com/show_bug.cgi?id=485894
bugzilla.novell.com/show_bug.cgi?id=486722
bugzilla.novell.com/show_bug.cgi?id=486723