The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2011-0496 advisory.
Multiple integer overflows in tools/libxc/xc_dom_bzimageloader.c in Xen 3.2, 3.3, 4.0, and 4.1 allow local users to cause a denial of service and possibly execute arbitrary code via a crafted paravirtualised guest kernel image that triggers (1) a buffer overflow during a decompression loop or (2) an out-of-bounds read in the loader involving unspecified length fields. (CVE-2011-1583)
tools/libxc/xc_dom_bzimageloader.c in Xen 3.2, 3.3, 4.0, and 4.1 allows local users to cause a denial of service (management software infinite loop and management domain resource consumption) via unspecified vectors related to Lack of error checking in the decompression loop. (CVE-2011-3262)
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
#%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-2011:0496 and
# Oracle Linux Security Advisory ELSA-2011-0496 respectively.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(68272);
script_version("1.8");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/16");
script_cve_id("CVE-2011-1583", "CVE-2011-3262");
script_xref(name:"RHSA", value:"2011:0496");
script_name(english:"Oracle Linux 5 : xen (ELSA-2011-0496)");
script_set_attribute(attribute:"synopsis", value:
"The remote Oracle Linux host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the
ELSA-2011-0496 advisory.
- Multiple integer overflows in tools/libxc/xc_dom_bzimageloader.c in Xen 3.2, 3.3, 4.0, and 4.1 allow local
users to cause a denial of service and possibly execute arbitrary code via a crafted paravirtualised guest
kernel image that triggers (1) a buffer overflow during a decompression loop or (2) an out-of-bounds read
in the loader involving unspecified length fields. (CVE-2011-1583)
- tools/libxc/xc_dom_bzimageloader.c in Xen 3.2, 3.3, 4.0, and 4.1 allows local users to cause a denial of
service (management software infinite loop and management domain resource consumption) via unspecified
vectors related to Lack of error checking in the decompression loop. (CVE-2011-3262)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://linux.oracle.com/errata/ELSA-2011-0496.html");
script_set_attribute(attribute:"solution", value:
"Update the affected xen, xen-devel and / or xen-libs packages.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2011-1583");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2011-3262");
script_set_attribute(attribute:"vuln_publication_date", value:"2011/08/12");
script_set_attribute(attribute:"patch_publication_date", value:"2011/05/09");
script_set_attribute(attribute:"plugin_publication_date", value:"2013/07/12");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:xen");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:xen-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:xen-libs");
script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:5");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Oracle Linux Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2013-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/OracleLinux", "Host/RedHat/release", "Host/RedHat/rpm-list");
exit(0);
}
include('rpm.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item('Host/OracleLinux')) audit(AUDIT_OS_NOT, 'Oracle Linux');
var os_release = get_kb_item("Host/RedHat/release");
if (isnull(os_release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:os_release)) audit(AUDIT_OS_NOT, 'Oracle Linux');
var os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Oracle Linux');
os_ver = os_ver[1];
if (! preg(pattern:"^5([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Oracle Linux 5', 'Oracle Linux ' + os_ver);
if (!get_kb_item('Host/RedHat/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Oracle Linux', cpu);
var pkgs = [
{'reference':'xen-3.0.3-120.el5_6.2', 'cpu':'i386', 'release':'5', 'rpm_spec_vers_cmp':TRUE},
{'reference':'xen-devel-3.0.3-120.el5_6.2', 'cpu':'i386', 'release':'5', 'rpm_spec_vers_cmp':TRUE},
{'reference':'xen-libs-3.0.3-120.el5_6.2', 'cpu':'i386', 'release':'5', 'rpm_spec_vers_cmp':TRUE},
{'reference':'xen-3.0.3-120.el5_6.2', 'cpu':'x86_64', 'release':'5', 'rpm_spec_vers_cmp':TRUE},
{'reference':'xen-devel-3.0.3-120.el5_6.2', 'cpu':'x86_64', 'release':'5', 'rpm_spec_vers_cmp':TRUE},
{'reference':'xen-libs-3.0.3-120.el5_6.2', 'cpu':'x86_64', 'release':'5', 'rpm_spec_vers_cmp':TRUE}
];
var flag = 0;
foreach var package_array ( pkgs ) {
var reference = NULL;
var _release = NULL;
var sp = NULL;
var _cpu = NULL;
var el_string = NULL;
var rpm_spec_vers_cmp = NULL;
var epoch = NULL;
var allowmaj = NULL;
var exists_check = NULL;
if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
if (!empty_or_null(package_array['release'])) _release = 'EL' + package_array['release'];
if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];
if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
if (reference && _release) {
if (exists_check) {
if (rpm_exists(release:_release, rpm:exists_check) && rpm_check(release:_release, sp:sp, cpu:cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;
} else {
if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;
}
}
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : rpm_report_get()
);
exit(0);
}
else
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'xen / xen-devel / xen-libs');
}