The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3880-1 advisory.
The Linux kernel before version 4.11 is vulnerable to a NULL pointer dereference in fs/cifs/cifsencrypt.c:setup_ntlmv2_rsp() that allows an attacker controlling a CIFS server to kernel panic a client that has this server mounted, because an empty TargetInfo field in an NTLMSSP setup negotiation response is mishandled during session recovery. (CVE-2018-1066)
An issue was discovered in the proc_pid_stack function in fs/proc/base.c in the Linux kernel through 4.18.11. It does not ensure that only root may inspect the kernel stack of an arbitrary task, allowing a local attacker to exploit racy stack unwinding and leak kernel task stack contents. (CVE-2018-17972)
Since Linux kernel version 3.2, the mremap() syscall performs TLB flushes after dropping pagetable locks.
If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused. This is fixed in the following kernel versions:
4.9.135, 4.14.78, 4.18.16, 4.19. (CVE-2018-18281)
In sk_clone_lock of sock.c, there is a possible memory corruption due to type confusion. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android. Versions: Android kernel. Android ID: A-113509306. References:
Upstream kernel. (CVE-2018-9568)
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-3880-1. The text
# itself is copyright (C) Canonical, Inc. See
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered
# trademark of Canonical, Inc.
#
include('compat.inc');
if (description)
{
script_id(121598);
script_version("1.8");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/09");
script_cve_id(
"CVE-2018-1066",
"CVE-2018-17972",
"CVE-2018-18281",
"CVE-2018-9568"
);
script_xref(name:"USN", value:"3880-1");
script_name(english:"Ubuntu 14.04 LTS : Linux kernel vulnerabilities (USN-3880-1)");
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-3880-1 advisory.
- The Linux kernel before version 4.11 is vulnerable to a NULL pointer dereference in
fs/cifs/cifsencrypt.c:setup_ntlmv2_rsp() that allows an attacker controlling a CIFS server to kernel panic
a client that has this server mounted, because an empty TargetInfo field in an NTLMSSP setup negotiation
response is mishandled during session recovery. (CVE-2018-1066)
- An issue was discovered in the proc_pid_stack function in fs/proc/base.c in the Linux kernel through
4.18.11. It does not ensure that only root may inspect the kernel stack of an arbitrary task, allowing a
local attacker to exploit racy stack unwinding and leak kernel task stack contents. (CVE-2018-17972)
- Since Linux kernel version 3.2, the mremap() syscall performs TLB flushes after dropping pagetable locks.
If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the middle of
mremap(), a stale TLB entry can remain for a short time that permits access to a physical page after it
has been released back to the page allocator and reused. This is fixed in the following kernel versions:
4.9.135, 4.14.78, 4.18.16, 4.19. (CVE-2018-18281)
- In sk_clone_lock of sock.c, there is a possible memory corruption due to type confusion. This could lead
to local escalation of privilege with no additional execution privileges needed. User interaction is not
needed for exploitation. Product: Android. Versions: Android kernel. Android ID: A-113509306. References:
Upstream kernel. (CVE-2018-9568)
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-3880-1");
script_set_attribute(attribute:"solution", value:
"Update the affected kernel package.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-9568");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2018/03/02");
script_set_attribute(attribute:"patch_publication_date", value:"2019/02/04");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/02/05");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-165-generic");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-165-generic-lpae");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-165-lowlatency");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-165-powerpc-e500");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-165-powerpc-e500mc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-165-powerpc-smp");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-165-powerpc64-emb");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-165-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) 2019-2024 Canonical, Inc. / NASL script (C) 2019-2024 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': {
'3.13.0': {
'generic': '3.13.0-165',
'generic-lpae': '3.13.0-165',
'lowlatency': '3.13.0-165',
'powerpc-e500': '3.13.0-165',
'powerpc-e500mc': '3.13.0-165',
'powerpc-smp': '3.13.0-165',
'powerpc64-emb': '3.13.0-165',
'powerpc64-smp': '3.13.0-165'
}
}
};
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 = 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-3880-1');
}
if (get_one_kb_item('Host/ksplice/kernel-cves'))
{
var cve_list = make_list('CVE-2018-1066', 'CVE-2018-9568', 'CVE-2018-17972', 'CVE-2018-18281');
if (ksplice_cves_check(cve_list))
{
audit(AUDIT_PATCH_INSTALLED, 'KSplice hotfix for USN-3880-1');
}
else
{
extra = extra + ksplice_reporting_text();
}
}
if (extra) {
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : extra
);
exit(0);
}
Vendor | Product | Version | CPE |
---|---|---|---|
canonical | ubuntu_linux | linux-image-3.13.0-165-generic | p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-165-generic |
canonical | ubuntu_linux | linux-image-3.13.0-165-generic-lpae | p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-165-generic-lpae |
canonical | ubuntu_linux | linux-image-3.13.0-165-lowlatency | p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-165-lowlatency |
canonical | ubuntu_linux | linux-image-3.13.0-165-powerpc-e500 | p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-165-powerpc-e500 |
canonical | ubuntu_linux | linux-image-3.13.0-165-powerpc-e500mc | p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-165-powerpc-e500mc |
canonical | ubuntu_linux | linux-image-3.13.0-165-powerpc-smp | p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-165-powerpc-smp |
canonical | ubuntu_linux | linux-image-3.13.0-165-powerpc64-emb | p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-165-powerpc64-emb |
canonical | ubuntu_linux | linux-image-3.13.0-165-powerpc64-smp | p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-165-powerpc64-smp |
canonical | ubuntu_linux | 14.04 | cpe:/o:canonical:ubuntu_linux:14.04:-:lts |