SUSE SLES11 Security Update : kernel (SUSE-SU-2016:2018-1)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2016:2018-1.
# The text itself is copyright (C) SUSE.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(93284);
  script_version("2.12");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");

  script_cve_id("CVE-2016-4470", "CVE-2016-4997", "CVE-2016-5829");

  script_name(english:"SUSE SLES11 Security Update : kernel (SUSE-SU-2016:2018-1)");
  script_summary(english:"Checks rpm output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote SUSE host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various
security and bugfixes. The following security bugs were fixed :

  - CVE-2016-5829: Multiple heap-based buffer overflows in
    the hiddev_ioctl_usage function in
    drivers/hid/usbhid/hiddev.c in the Linux kernel allowed
    local users to cause a denial of service or possibly
    have unspecified other impact via a crafted (1)
    HIDIOCGUSAGES or (2) HIDIOCSUSAGES ioctl call
    (bnc#986572).

  - CVE-2016-4997: The compat IPT_SO_SET_REPLACE setsockopt
    implementation in the netfilter subsystem in the Linux
    kernel allowed local users to gain privileges or cause a
    denial of service (memory corruption) by leveraging
    in-container root access to provide a crafted offset
    value that triggers an unintended decrement
    (bnc#986362).

  - CVE-2016-4470: The key_reject_and_link function in
    security/keys/key.c in the Linux kernel did not ensure
    that a certain data structure is initialized, which
    allowed local users to cause a denial of service (system
    crash) via vectors involving a crafted keyctl request2
    command (bnc#984755).

The update package also includes non-security fixes. See advisory for
details.

Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE 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://bugzilla.suse.com/show_bug.cgi?id=909589"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=954847"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=971030"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=974620"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=979915"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=982544"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=983721"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=984755"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=986362"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=986572"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=988498"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-4470/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-4997/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-5829/"
  );
  # https://www.suse.com/support/update/announcement/2016/suse-su-20162018-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?86792a21"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Software Development Kit 11-SP4:zypper in -t
patch sdksp4-kernel-12685=1

SUSE Linux Enterprise Server 11-SP4:zypper in -t patch
slessp4-kernel-12685=1

SUSE Linux Enterprise Server 11-EXTRA:zypper in -t patch
slexsp3-kernel-12685=1

SUSE Linux Enterprise Debuginfo 11-SP4:zypper in -t patch
dbgsp4-kernel-12685=1

To bring your system up-to-date, use 'zypper patch'."
  );
  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:H/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:H/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Linux Kernel 4.6.3 Netfilter Privilege Escalation');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-man");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-ec2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-ec2-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-ec2-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-pae");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-pae-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-pae-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-source");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-syms");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-trace");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-trace-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-trace-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-xen");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-xen-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-xen-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:11");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/06/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/08/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/09/02");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! preg(pattern:"^(SLES11)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLES11", "SUSE " + os_ver);

if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu);

sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES11" && (! preg(pattern:"^(4)$", string:sp))) audit(AUDIT_OS_NOT, "SLES11 SP4", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES11", sp:"4", cpu:"x86_64", reference:"kernel-ec2-3.0.101-80.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"x86_64", reference:"kernel-ec2-base-3.0.101-80.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"x86_64", reference:"kernel-ec2-devel-3.0.101-80.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"x86_64", reference:"kernel-xen-3.0.101-80.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"x86_64", reference:"kernel-xen-base-3.0.101-80.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"x86_64", reference:"kernel-xen-devel-3.0.101-80.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"x86_64", reference:"kernel-pae-3.0.101-80.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"x86_64", reference:"kernel-pae-base-3.0.101-80.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"x86_64", reference:"kernel-pae-devel-3.0.101-80.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"s390x", reference:"kernel-default-man-3.0.101-80.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", reference:"kernel-default-3.0.101-80.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", reference:"kernel-default-base-3.0.101-80.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", reference:"kernel-default-devel-3.0.101-80.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", reference:"kernel-source-3.0.101-80.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", reference:"kernel-syms-3.0.101-80.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", reference:"kernel-trace-3.0.101-80.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", reference:"kernel-trace-base-3.0.101-80.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", reference:"kernel-trace-devel-3.0.101-80.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"i586", reference:"kernel-ec2-3.0.101-80.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"i586", reference:"kernel-ec2-base-3.0.101-80.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"i586", reference:"kernel-ec2-devel-3.0.101-80.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"i586", reference:"kernel-xen-3.0.101-80.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"i586", reference:"kernel-xen-base-3.0.101-80.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"i586", reference:"kernel-xen-devel-3.0.101-80.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"i586", reference:"kernel-pae-3.0.101-80.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"i586", reference:"kernel-pae-base-3.0.101-80.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"i586", reference:"kernel-pae-devel-3.0.101-80.1")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "kernel");
}