7.1 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:N/I:N/A:C
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
0.001 Low
EPSS
Percentile
35.4%
Alexander Popov discovered that a race condition existed in the Stream Control Transmission Protocol (SCTP) implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash).
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-3266-1. 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(99659);
script_version("3.7");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/01/12");
script_cve_id("CVE-2017-5986");
script_xref(name:"USN", value:"3266-1");
script_name(english:"Ubuntu 16.10 : linux, linux-raspi2 vulnerability (USN-3266-1)");
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:
"Alexander Popov discovered that a race condition existed in the Stream
Control Transmission Protocol (SCTP) implementation in the Linux
kernel. A local attacker could use this to cause a denial of service
(system crash).
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/3266-1/"
);
script_set_attribute(attribute:"solution", value:"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/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:N/UI:R/S:U/C:N/I:N/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
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-4.8-generic");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.8-generic-lpae");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.8-lowlatency");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.8-raspi2");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-generic");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-lpae");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-lowlatency");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-raspi2");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.10");
script_set_attribute(attribute:"vuln_publication_date", value:"2017/02/18");
script_set_attribute(attribute:"patch_publication_date", value:"2017/04/24");
script_set_attribute(attribute:"plugin_publication_date", value:"2017/04/25");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"Ubuntu Security Notice (C) 2017-2023 Canonical, Inc. / NASL script (C) 2017-2023 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");
var release = chomp(release);
if (! preg(pattern:"^(16\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 16.10", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Ubuntu', cpu);
if (get_one_kb_item("Host/ksplice/kernel-cves"))
{
rm_kb_item(name:"Host/uptrack-uname-r");
cve_list = make_list("CVE-2017-5986");
if (ksplice_cves_check(cve_list))
{
audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for USN-3266-1");
}
else
{
_ubuntu_report = ksplice_reporting_text();
}
}
var flag = 0;
if (ubuntu_check(osver:"16.10", pkgname:"linux-image-4.8.0-1035-raspi2", pkgver:"4.8.0-1035.38")) flag++;
if (ubuntu_check(osver:"16.10", pkgname:"linux-image-4.8.0-49-generic", pkgver:"4.8.0-49.52")) flag++;
if (ubuntu_check(osver:"16.10", pkgname:"linux-image-4.8.0-49-generic-lpae", pkgver:"4.8.0-49.52")) flag++;
if (ubuntu_check(osver:"16.10", pkgname:"linux-image-4.8.0-49-lowlatency", pkgver:"4.8.0-49.52")) flag++;
if (ubuntu_check(osver:"16.10", pkgname:"linux-image-generic", pkgver:"4.8.0.49.61")) flag++;
if (ubuntu_check(osver:"16.10", pkgname:"linux-image-generic-lpae", pkgver:"4.8.0.49.61")) flag++;
if (ubuntu_check(osver:"16.10", pkgname:"linux-image-lowlatency", pkgver:"4.8.0.49.61")) flag++;
if (ubuntu_check(osver:"16.10", pkgname:"linux-image-raspi2", pkgver:"4.8.0.1035.39")) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : ubuntu_report_get()
);
exit(0);
}
else
{
var tested = ubuntu_pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "linux-image-4.8-generic / linux-image-4.8-generic-lpae / etc");
}
Vendor | Product | Version | CPE |
---|---|---|---|
canonical | ubuntu_linux | linux-image-4.8-generic | p-cpe:/a:canonical:ubuntu_linux:linux-image-4.8-generic |
canonical | ubuntu_linux | linux-image-4.8-generic-lpae | p-cpe:/a:canonical:ubuntu_linux:linux-image-4.8-generic-lpae |
canonical | ubuntu_linux | linux-image-4.8-lowlatency | p-cpe:/a:canonical:ubuntu_linux:linux-image-4.8-lowlatency |
canonical | ubuntu_linux | linux-image-4.8-raspi2 | p-cpe:/a:canonical:ubuntu_linux:linux-image-4.8-raspi2 |
canonical | ubuntu_linux | linux-image-generic | p-cpe:/a:canonical:ubuntu_linux:linux-image-generic |
canonical | ubuntu_linux | linux-image-generic-lpae | p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-lpae |
canonical | ubuntu_linux | linux-image-lowlatency | p-cpe:/a:canonical:ubuntu_linux:linux-image-lowlatency |
canonical | ubuntu_linux | linux-image-raspi2 | p-cpe:/a:canonical:ubuntu_linux:linux-image-raspi2 |
canonical | ubuntu_linux | 16.10 | cpe:/o:canonical:ubuntu_linux:16.10 |
7.1 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:N/I:N/A:C
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
0.001 Low
EPSS
Percentile
35.4%