Oracle Linux 4 : kernel (ELSA-2010-0020)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2010:0020 and 
# Oracle Linux Security Advisory ELSA-2010-0020 respectively.
#

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

if (description)
{
  script_id(67983);
  script_version("1.16");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/08/24");

  script_cve_id("CVE-2009-4536", "CVE-2009-4537", "CVE-2009-4538");
  script_bugtraq_id(36706, 37519, 37523);
  script_xref(name:"RHSA", value:"2010:0020");

  script_name(english:"Oracle Linux 4 : kernel (ELSA-2010-0020)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Oracle Linux host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"From Red Hat Security Advisory 2010:0020 :

Updated kernel packages that fix multiple security issues are now
available for Red Hat Enterprise Linux 4.

This update has been rated as having important security impact by the
Red Hat Security Response Team.

The kernel packages contain the Linux kernel, the core of any Linux
operating system.

This update fixes the following security issues :

* a flaw was found in each of the following Intel PRO/1000 Linux
drivers in the Linux kernel: e1000 and e1000e. A remote attacker using
packets larger than the MTU could bypass the existing fragment check,
resulting in partial, invalid frames being passed to the network
stack. These flaws could also possibly be used to trigger a remote
denial of service. (CVE-2009-4536, CVE-2009-4538, Important)

* a flaw was found in the Realtek r8169 Ethernet driver in the Linux
kernel. Receiving overly-long frames with network cards supported by
this driver could possibly result in a remote denial of service.
(CVE-2009-4537, Important)

Users should upgrade to these updated packages, which contain
backported patches to correct these issues. The system must be
rebooted for this update to take effect."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2010-January/001311.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected kernel packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(20, 189);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-hugemem");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-hugemem-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-largesmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-largesmp-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-smp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-smp-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-xenU");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-xenU-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:4");

  script_set_attribute(attribute:"vuln_publication_date", value:"2010/01/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2010/01/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/07/12");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Oracle Linux Local Security Checks");

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

  exit(0);
}


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


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/OracleLinux")) audit(AUDIT_OS_NOT, "Oracle Linux");
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, "Oracle Linux");
os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Oracle Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^4([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 4", "Oracle 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 ("x86_64" >!< cpu && "ia64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Oracle Linux", cpu);

if (get_one_kb_item("Host/ksplice/kernel-cves"))
{
  cve_list = make_list("CVE-2009-4536", "CVE-2009-4537", "CVE-2009-4538");  
  if (ksplice_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for ELSA-2010-0020");
  }
  else
  {
    __rpm_report = ksplice_reporting_text();
  }
}

kernel_major_minor = get_kb_item("Host/uname/major_minor");
if (empty_or_null(kernel_major_minor)) exit(1, "Unable to determine kernel major-minor level.");
expected_kernel_major_minor = "2.6";
if (kernel_major_minor != expected_kernel_major_minor)
  audit(AUDIT_OS_NOT, "running kernel level " + expected_kernel_major_minor + ", it is running kernel level " + kernel_major_minor);

flag = 0;
if (rpm_exists(release:"EL4", rpm:"kernel-2.6.9") && rpm_check(release:"EL4", reference:"kernel-2.6.9-89.0.19.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-devel-2.6.9") && rpm_check(release:"EL4", reference:"kernel-devel-2.6.9-89.0.19.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-doc-2.6.9") && rpm_check(release:"EL4", reference:"kernel-doc-2.6.9-89.0.19.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-hugemem-2.6.9") && rpm_check(release:"EL4", cpu:"i386", reference:"kernel-hugemem-2.6.9-89.0.19.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-hugemem-devel-2.6.9") && rpm_check(release:"EL4", cpu:"i386", reference:"kernel-hugemem-devel-2.6.9-89.0.19.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-largesmp-2.6.9") && rpm_check(release:"EL4", cpu:"ia64", reference:"kernel-largesmp-2.6.9-89.0.19.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-largesmp-2.6.9") && rpm_check(release:"EL4", cpu:"x86_64", reference:"kernel-largesmp-2.6.9-89.0.19.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-largesmp-devel-2.6.9") && rpm_check(release:"EL4", cpu:"ia64", reference:"kernel-largesmp-devel-2.6.9-89.0.19.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-largesmp-devel-2.6.9") && rpm_check(release:"EL4", cpu:"x86_64", reference:"kernel-largesmp-devel-2.6.9-89.0.19.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-smp-2.6.9") && rpm_check(release:"EL4", cpu:"i386", reference:"kernel-smp-2.6.9-89.0.19.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-smp-2.6.9") && rpm_check(release:"EL4", cpu:"x86_64", reference:"kernel-smp-2.6.9-89.0.19.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-smp-devel-2.6.9") && rpm_check(release:"EL4", cpu:"i386", reference:"kernel-smp-devel-2.6.9-89.0.19.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-smp-devel-2.6.9") && rpm_check(release:"EL4", cpu:"x86_64", reference:"kernel-smp-devel-2.6.9-89.0.19.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-xenU-2.6.9") && rpm_check(release:"EL4", cpu:"i386", reference:"kernel-xenU-2.6.9-89.0.19.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-xenU-2.6.9") && rpm_check(release:"EL4", cpu:"x86_64", reference:"kernel-xenU-2.6.9-89.0.19.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-xenU-devel-2.6.9") && rpm_check(release:"EL4", cpu:"i386", reference:"kernel-xenU-devel-2.6.9-89.0.19.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-xenU-devel-2.6.9") && rpm_check(release:"EL4", cpu:"x86_64", reference:"kernel-xenU-devel-2.6.9-89.0.19.0.1.EL")) 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, "affected kernel");
}