SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2016:0168-1)

#%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-2016:0168-1.
# The text itself is copyright (C) SUSE.
#

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

if (description)
{
  script_id(88006);
  script_version("2.13");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id("CVE-2015-7550", "CVE-2015-8539", "CVE-2015-8543", "CVE-2015-8550", "CVE-2015-8551", "CVE-2015-8552", "CVE-2015-8569", "CVE-2015-8575");

  script_name(english:"SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2016:0168-1)");
  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 12 kernel was updated to receive various
security and bugfixes.

Following security bugs were fixed :

  - CVE-2015-7550: A local user could have triggered a race
    between read and revoke in keyctl (bnc#958951).

  - CVE-2015-8539: A negatively instantiated user key could
    have been used by a local user to leverage privileges
    (bnc#958463).

  - CVE-2015-8543: The networking implementation in the
    Linux kernel did not validate protocol identifiers for
    certain protocol families, which allowed local users to
    cause a denial of service (NULL function pointer
    dereference and system crash) or possibly gain
    privileges by leveraging CLONE_NEWUSER support to
    execute a crafted SOCK_RAW application (bnc#958886).

  - CVE-2015-8550: Compiler optimizations in the XEN PV
    backend drivers could have lead to double fetch
    vulnerabilities, causing denial of service or arbitrary
    code execution (depending on the configuration)
    (bsc#957988).

  - CVE-2015-8551, CVE-2015-8552: xen/pciback: For
    XEN_PCI_OP_disable_msi[|x] only disable if device has
    MSI(X) enabled (bsc#957990).

  - CVE-2015-8569: The (1) pptp_bind and (2) pptp_connect
    functions in drivers/net/ppp/pptp.c in the Linux kernel
    did not verify an address length, which allowed local
    users to obtain sensitive information from kernel memory
    and bypass the KASLR protection mechanism via a crafted
    application (bnc#959190).

  - CVE-2015-8575: Validate socket address length in
    sco_sock_bind() to prevent information leak
    (bsc#959399).

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=758040"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=902606"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=924919"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=935087"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=937261"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=943959"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=945649"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=949440"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=951155"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=951199"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=951392"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=951615"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=951638"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=952579"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=952976"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=956708"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=956801"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=956876"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=957395"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=957546"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=957988"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=957990"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=958463"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=958504"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=958510"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=958647"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=958886"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=958951"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=959190"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=959364"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=959399"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=959436"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=959705"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=960300"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2015-7550/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2015-8539/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2015-8543/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2015-8550/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2015-8551/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2015-8552/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2015-8569/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2015-8575/"
  );
  # https://www.suse.com/support/update/announcement/2016/suse-su-20160168-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?ceb6abc6"
  );
  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 Workstation Extension 12 :

zypper in -t patch SUSE-SLE-WE-12-2016-107=1

SUSE Linux Enterprise Software Development Kit 12 :

zypper in -t patch SUSE-SLE-SDK-12-2016-107=1

SUSE Linux Enterprise Server 12 :

zypper in -t patch SUSE-SLE-SERVER-12-2016-107=1

SUSE Linux Enterprise Module for Public Cloud 12 :

zypper in -t patch SUSE-SLE-Module-Public-Cloud-12-2016-107=1

SUSE Linux Enterprise Live Patching 12 :

zypper in -t patch SUSE-SLE-Live-Patching-12-2016-107=1

SUSE Linux Enterprise Desktop 12 :

zypper in -t patch SUSE-SLE-DESKTOP-12-2016-107=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: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:"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: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-base-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-debugsource");
  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-extra");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-extra-debuginfo");
  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-syms");
  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-base-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-xen-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-xen-debugsource");
  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:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2015/12/28");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/01/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/01/20");
  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:"^(SLED12|SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED12 / SLES12", "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 == "SLES12" && (! preg(pattern:"^(0)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP0", os_ver + " SP" + sp);
if (os_ver == "SLED12" && (! preg(pattern:"^(0)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP0", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"0", cpu:"x86_64", reference:"kernel-xen-3.12.51-52.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", cpu:"x86_64", reference:"kernel-xen-base-3.12.51-52.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", cpu:"x86_64", reference:"kernel-xen-base-debuginfo-3.12.51-52.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", cpu:"x86_64", reference:"kernel-xen-debuginfo-3.12.51-52.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", cpu:"x86_64", reference:"kernel-xen-debugsource-3.12.51-52.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", cpu:"x86_64", reference:"kernel-xen-devel-3.12.51-52.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", cpu:"s390x", reference:"kernel-default-man-3.12.51-52.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"kernel-default-3.12.51-52.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"kernel-default-base-3.12.51-52.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"kernel-default-base-debuginfo-3.12.51-52.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"kernel-default-debuginfo-3.12.51-52.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"kernel-default-debugsource-3.12.51-52.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"kernel-default-devel-3.12.51-52.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"kernel-syms-3.12.51-52.34.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"kernel-default-3.12.51-52.34.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"kernel-default-debuginfo-3.12.51-52.34.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"kernel-default-debugsource-3.12.51-52.34.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"kernel-default-devel-3.12.51-52.34.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"kernel-default-extra-3.12.51-52.34.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"kernel-default-extra-debuginfo-3.12.51-52.34.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"kernel-syms-3.12.51-52.34.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"kernel-xen-3.12.51-52.34.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"kernel-xen-debuginfo-3.12.51-52.34.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"kernel-xen-debugsource-3.12.51-52.34.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"kernel-xen-devel-3.12.51-52.34.1")) 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");
}