CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
EPSS
Percentile
5.1%
An error was discovered in the Linux kernelβs network TUN/TAP device implementation. A local user with access to the TUN/TAP interface (which is not available to unprivileged users until granted by a root user) could exploit this flaw to crash the system or potential gain administrative privileges. (CVE-2012-2136)
A flaw was found in the Linux kernelβs Reliable Datagram Sockets (RDS) protocol implementation. A local, unprivileged user could use this flaw to cause a denial of service. (CVE-2012-2372)
An error was discovered in the Linux kernelβs memory subsystem (hugetlb). An unprivileged local user could exploit this flaw to cause a denial of service (crash the system). (CVE-2012-2390).
Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-1538-1. 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(61548);
script_version("1.9");
script_cvs_date("Date: 2019/09/19 12:54:28");
script_cve_id("CVE-2012-2136", "CVE-2012-2372", "CVE-2012-2390");
script_bugtraq_id(53668, 53721, 54062);
script_xref(name:"USN", value:"1538-1");
script_name(english:"Ubuntu 10.04 LTS : linux-lts-backport-natty vulnerabilities (USN-1538-1)");
script_summary(english:"Checks dpkg output for updated packages.");
script_set_attribute(
attribute:"synopsis",
value:
"The remote Ubuntu host is missing one or more security-related
patches."
);
script_set_attribute(
attribute:"description",
value:
"An error was discovered in the Linux kernel's network TUN/TAP device
implementation. A local user with access to the TUN/TAP interface
(which is not available to unprivileged users until granted by a root
user) could exploit this flaw to crash the system or potential gain
administrative privileges. (CVE-2012-2136)
A flaw was found in the Linux kernel's Reliable Datagram Sockets (RDS)
protocol implementation. A local, unprivileged user could use this
flaw to cause a denial of service. (CVE-2012-2372)
An error was discovered in the Linux kernel's memory subsystem
(hugetlb). An unprivileged local user could exploit this flaw to cause
a denial of service (crash the system). (CVE-2012-2390).
Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
);
script_set_attribute(
attribute:"see_also",
value:"https://usn.ubuntu.com/1538-1/"
);
script_set_attribute(attribute:"solution", value:"Update the affected packages.");
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:ND/RL:OF/RC:ND");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-2.6-generic");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-2.6-generic-pae");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-2.6-server");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-2.6-virtual");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:10.04:-:lts");
script_set_attribute(attribute:"vuln_publication_date", value:"2012/06/13");
script_set_attribute(attribute:"patch_publication_date", value:"2012/08/14");
script_set_attribute(attribute:"plugin_publication_date", value:"2012/08/15");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"Ubuntu Security Notice (C) 2012-2019 Canonical, Inc. / NASL script (C) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Ubuntu Local Security Checks");
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("audit.inc");
include("ubuntu.inc");
include("ksplice.inc");
if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! preg(pattern:"^(10\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 10.04", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Ubuntu", cpu);
if (get_one_kb_item("Host/ksplice/kernel-cves"))
{
rm_kb_item(name:"Host/uptrack-uname-r");
cve_list = make_list("CVE-2012-2136", "CVE-2012-2372", "CVE-2012-2390");
if (ksplice_cves_check(cve_list))
{
audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for USN-1538-1");
}
else
{
_ubuntu_report = ksplice_reporting_text();
}
}
flag = 0;
if (ubuntu_check(osver:"10.04", pkgname:"linux-image-2.6.38-15-generic", pkgver:"2.6.38-15.65~lucid1")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"linux-image-2.6.38-15-generic-pae", pkgver:"2.6.38-15.65~lucid1")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"linux-image-2.6.38-15-server", pkgver:"2.6.38-15.65~lucid1")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"linux-image-2.6.38-15-virtual", pkgver:"2.6.38-15.65~lucid1")) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : ubuntu_report_get()
);
exit(0);
}
else
{
tested = ubuntu_pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "linux-image-2.6-generic / linux-image-2.6-generic-pae / etc");
}