Ubuntu 14.04 LTS kernel vulnerabilities (USN-2854-1) Tenable advisor
Reporter | Title | Published | Views | Family All 199 |
---|---|---|---|---|
Ubuntu | Linux kernel (Vivid HWE) vulnerabilities | 20 Dec 201500:00 | – | ubuntu |
Ubuntu | Linux kernel (Wily HWE) vulnerabilities | 20 Dec 201500:00 | – | ubuntu |
Ubuntu | Linux kernel (Trusty HWE) vulnerabilities | 19 Dec 201500:00 | – | ubuntu |
Ubuntu | Linux kernel vulnerabilities | 19 Dec 201500:00 | – | ubuntu |
Ubuntu | Linux kernel (Utopic HWE) vulnerabilities | 19 Dec 201500:00 | – | ubuntu |
Ubuntu | Linux kernel vulnerabilities | 19 Dec 201500:00 | – | ubuntu |
Ubuntu | Linux kernel vulnerabilities | 19 Dec 201500:00 | – | ubuntu |
Ubuntu | Linux kernel vulnerabilities | 19 Dec 201500:00 | – | ubuntu |
Ubuntu | Linux kernel (Raspberry Pi 2) vulnerability | 19 Dec 201500:00 | – | ubuntu |
Ubuntu | Linux kernel (OMAP4) vulnerabilities | 1 Feb 201600:00 | – | ubuntu |
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-2854-1. The text
# itself is copyright (C) Canonical, Inc. See
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered
# trademark of Canonical, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(87537);
script_version("2.18");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/08/27");
script_cve_id(
"CVE-2015-8550",
"CVE-2015-8551",
"CVE-2015-8552",
"CVE-2015-8709"
);
script_xref(name:"USN", value:"2854-1");
script_name(english:"Ubuntu 14.04 LTS : Linux kernel (Vivid HWE) vulnerabilities (USN-2854-1)");
script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in
the USN-2854-1 advisory.
Felix Wilhelm discovered a race condition in the Xen paravirtualized drivers which can cause double fetch
vulnerabilities. An attacker in the paravirtualized guest could exploit this flaw to cause a denial of
service (crash the host) or potentially execute arbitrary code on the host. (CVE-2015-8550)
Konrad Rzeszutek Wilk discovered the Xen PCI backend driver does not perform consistency checks on the
device's state. An attacker could exploit this flaw to cause a denial of service (NULL dereference) on the
host. (CVE-2015-8551)
Konrad Rzeszutek Wilk discovered the Xen PCI backend driver does not perform consistency checks on the
device's state. An attacker could exploit this flaw to cause a denial of service by flooding the logging
system with WARN() messages causing the initial domain to exhaust disk space. (CVE-2015-8552)
Jann Horn discovered a ptrace issue with user namespaces in the Linux kernel. The namespace owner could
potentially exploit this flaw by ptracing a root owned process entering the user namespace to elevate its
privileges and potentially gain access outside of the namespace. (http://bugs.launchpad.net/bugs/1527374,
CVE-2015-8709)
Tenable has extracted the preceding description block directly from the Ubuntu security advisory.
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://ubuntu.com/security/notices/USN-2854-1");
script_set_attribute(attribute:"solution", value:
"Update the affected kernel package.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2015-8709");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2015-8550");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2016/04/13");
script_set_attribute(attribute:"patch_publication_date", value:"2015/12/20");
script_set_attribute(attribute:"plugin_publication_date", value:"2015/12/21");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-3.19.0-42-generic");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-3.19.0-42-generic-lpae");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-3.19.0-42-lowlatency");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-3.19.0-42-powerpc-e500mc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-3.19.0-42-powerpc-smp");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-3.19.0-42-powerpc64-emb");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-3.19.0-42-powerpc64-smp");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.04:-:lts");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Ubuntu Local Security Checks");
script_copyright(english:"Ubuntu Security Notice (C) 2015-2020 Canonical, Inc. / NASL script (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl", "linux_alt_patch_detect.nasl");
script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");
exit(0);
}
include('debian_package.inc');
include('ksplice.inc');
if ( ! get_kb_item('Host/local_checks_enabled') ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/Ubuntu/release');
if ( isnull(os_release) ) audit(AUDIT_OS_NOT, 'Ubuntu');
os_release = chomp(os_release);
if (! ('14.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 14.04', 'Ubuntu ' + os_release);
if ( ! get_kb_item('Host/Debian/dpkg-l') ) 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$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Ubuntu', cpu);
var kernel_mappings = {
'14.04': {
'3.19.0': {
'generic': '3.19.0-42',
'generic-lpae': '3.19.0-42',
'lowlatency': '3.19.0-42',
'powerpc-e500mc': '3.19.0-42',
'powerpc-smp': '3.19.0-42',
'powerpc64-emb': '3.19.0-42',
'powerpc64-smp': '3.19.0-42'
}
}
};
var host_kernel_release = get_kb_item('Host/uptrack-uname-r');
if (empty_or_null(host_kernel_release)) host_kernel_release = get_kb_item_or_exit('Host/uname-r');
var host_kernel_base_version = get_kb_item_or_exit('Host/Debian/kernel-base-version');
var host_kernel_type = get_kb_item_or_exit('Host/Debian/kernel-type');
if(empty_or_null(kernel_mappings[os_release][host_kernel_base_version][host_kernel_type])) audit(AUDIT_INST_VER_NOT_VULN, 'kernel ' + host_kernel_release);
var extra = '';
var kernel_fixed_version = kernel_mappings[os_release][host_kernel_base_version][host_kernel_type] + "-" + host_kernel_type;
if (deb_ver_cmp(ver1:host_kernel_release, ver2:kernel_fixed_version) < 0)
{
extra += 'Running Kernel level of ' + host_kernel_release + ' does not meet the minimum fixed level of ' + kernel_fixed_version + ' for this advisory.\n\n';
}
else
{
audit(AUDIT_PATCH_INSTALLED, 'Kernel package for USN-2854-1');
}
if (get_one_kb_item('Host/ksplice/kernel-cves'))
{
var cve_list = make_list('CVE-2015-8550', 'CVE-2015-8551', 'CVE-2015-8552', 'CVE-2015-8709');
if (ksplice_cves_check(cve_list))
{
audit(AUDIT_PATCH_INSTALLED, 'KSplice hotfix for USN-2854-1');
}
else
{
extra = extra + ksplice_reporting_text();
}
}
if (extra) {
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : extra
);
exit(0);
}
Transform Your Security Services
Elevate your offerings with Vulners' advanced Vulnerability Intelligence. Contact us for a demo and discover the difference comprehensive, actionable intelligence can make in your security strategy.
Book a live demo