Scientific Linux Security Update : kernel on SL7.x x86_64 (20160623)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text is (C) Scientific Linux.
#

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

if (description)
{
  script_id(91853);
  script_version("2.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");

  script_cve_id("CVE-2015-8767", "CVE-2016-4565");

  script_name(english:"Scientific Linux Security Update : kernel on SL7.x x86_64 (20160623)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Scientific Linux host is missing one or more security
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"To see the complete list of bug fixes, users are directed to the
related Knowledge Article :

Security Fixes :

  - A flaw was found in the way certain interfaces of the
    Linux kernel's Infiniband subsystem used write() as
    bi-directional ioctl() replacement, which could lead to
    insufficient memory security checks when being invoked
    using the splice() system call. A local unprivileged
    user on a system with either Infiniband hardware present
    or RDMA Userspace Connection Manager Access module
    explicitly loaded, could use this flaw to escalate their
    privileges on the system. (CVE-2016-4565, Important)

  - A race condition flaw was found in the way the Linux
    kernel's SCTP implementation handled sctp_accept()
    during the processing of heartbeat timeout events. A
    remote attacker could use this flaw to prevent further
    connections to be accepted by the SCTP server running on
    the system, resulting in a denial of service.
    (CVE-2015-8767, Moderate)

Bug Fixes :

  - When Small Computer System Interface (SCSI) devices were
    removed or deleted, a system crash could occur due to a
    race condition between listing all SCSI devices and SCSI
    device removal. The provided patch ensures that the
    starting node for the klist_iter_init_node() function is
    actually a member of the list before using it. As a
    result, a system crash no longer occurs in the described
    scenario.

  - This update offers a reworked series of patches for the
    resizable hash table (rhashtable) including a number of
    backported bug fixes and enhancements from upstream.

  - Previously, the same value of the mperf Model-Specific
    Register (MSR) read twice in a row could lead to a
    kernel panic due to the divide-by-zero error. The
    provided patch fixes this bug, and the kernel now
    handles two identical values of mperf gracefully.

  - When a transparent proxy application was running and the
    number of established connections on the computer
    exceeded one million, unrelated processes, such as curl
    or ssh, were unable to bind to a local IP on the box to
    initiate a connection. The provided patch fixes the
    cooperation of the REUSEADDR/NOREUSEADDR socket option,
    and thus prevents the local port from being exhausted.
    As a result, the aforementioned bug no longer occurs in
    the described scenario.

  - Previously, the kernel support for non-local bind for
    the IPv6 protocol was incomplete. As a consequence, an
    attempt to bind a socket to an IPv6 address that is not
    assigned to the host could fail. The provided patch
    includes changes in the ip_nonlocal_bind variable, which
    is now set to allow binding to an IPv6 address that is
    not assigned to the host. As a result, Linux servers are
    now able to bind to non-local IPv6 addresses as
    expected.

  - On some servers with a faster CPU, USB initialization
    could previously lead to a kernel hang during boot. If
    this inconvenience occurred when booting the second
    kernel during the kdump operation, the kdump service
    failed and the vmcore was lost. The provided upstream
    patch fixes this bug, and the kernel no longer hangs
    after USB initialization.

  - Previously, when running iperf servers using the mlx4_en
    module, a kernel panic occurred. The underlying source
    code has been fixed, and the kernel panic no longer
    occurs in the described scenario."
  );
  # https://listserv.fnal.gov/scripts/wa.exe?A2=ind1606&L=scientific-linux-errata&F=&S=&P=8312
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?99c37aad"
  );
  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_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");

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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-debug");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-debug-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-debug-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-debuginfo-common-x86_64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-tools-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-tools-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-tools-libs-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:perf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:perf-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:python-perf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:python-perf-debuginfo");
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  script_set_attribute(attribute:"vuln_publication_date", value:"2016/02/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/06/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/06/27");
  script_set_attribute(attribute:"generated_plugin", value:"current");
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  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:"Scientific Linux Local Security Checks");

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

  exit(0);
}


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

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux");
os_ver = pregmatch(pattern: "Scientific Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Scientific Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Scientific Linux 7.x", "Scientific Linux " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

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


flag = 0;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"kernel-3.10.0-327.22.2.el7")) flag++;
if (rpm_check(release:"SL7", reference:"kernel-abi-whitelists-3.10.0-327.22.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"kernel-debug-3.10.0-327.22.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"kernel-debug-debuginfo-3.10.0-327.22.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"kernel-debug-devel-3.10.0-327.22.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"kernel-debuginfo-3.10.0-327.22.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"kernel-debuginfo-common-x86_64-3.10.0-327.22.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"kernel-devel-3.10.0-327.22.2.el7")) flag++;
if (rpm_check(release:"SL7", reference:"kernel-doc-3.10.0-327.22.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"kernel-headers-3.10.0-327.22.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"kernel-tools-3.10.0-327.22.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"kernel-tools-debuginfo-3.10.0-327.22.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"kernel-tools-libs-3.10.0-327.22.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"kernel-tools-libs-devel-3.10.0-327.22.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"perf-3.10.0-327.22.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"perf-debuginfo-3.10.0-327.22.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"python-perf-3.10.0-327.22.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"python-perf-debuginfo-3.10.0-327.22.2.el7")) flag++;


if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "kernel / kernel-abi-whitelists / kernel-debug / etc");
}