Oracle Linux 4 : kernel (ELSA-2007-0937)

#%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-2007:0937 and 
# Oracle Linux Security Advisory ELSA-2007-0937 respectively.
#

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

if (description)
{
  script_id(67578);
  script_version("1.14");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/08/24");

  script_cve_id("CVE-2007-4573");
  script_bugtraq_id(25774);
  script_xref(name:"RHSA", value:"2007:0937");

  script_name(english:"Oracle Linux 4 : kernel (ELSA-2007-0937)");
  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 2007:0937 :

Updated kernel packages that fix a security issue in the Red Hat
Enterprise Linux 4 kernel are now available.

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

The Linux kernel handles the basic functions of the operating system.

A flaw was found in the IA32 system call emulation provided on AMD64
and Intel 64 platforms. An improperly validated 64-bit value could be
stored in the %RAX register, which could trigger an out-of-bounds
system call table access. An untrusted local user could exploit this
flaw to run code in the kernel (ie a root privilege escalation).
(CVE-2007-4573).

Red Hat would like to thank Wojciech Purczynski for reporting this
issue.

Red Hat Enterprise Linux 4 users are advised to upgrade to these
packages, which contain a backported patch to correct this issue."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2007-September/000342.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected kernel packages."
  );
  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:POC/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_cwe_id(264);

  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:"2007/09/24");
  script_set_attribute(attribute:"patch_publication_date", value:"2007/09/28");
  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-2007-4573");  
  if (ksplice_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for ELSA-2007-0937");
  }
  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", cpu:"i386", reference:"kernel-2.6.9-55.0.9.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-2.6.9") && rpm_check(release:"EL4", cpu:"x86_64", reference:"kernel-2.6.9-55.0.9.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-devel-2.6.9") && rpm_check(release:"EL4", cpu:"i386", reference:"kernel-devel-2.6.9-55.0.9.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-devel-2.6.9") && rpm_check(release:"EL4", cpu:"x86_64", reference:"kernel-devel-2.6.9-55.0.9.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-doc-2.6.9") && rpm_check(release:"EL4", cpu:"i386", reference:"kernel-doc-2.6.9-55.0.9.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-doc-2.6.9") && rpm_check(release:"EL4", cpu:"x86_64", reference:"kernel-doc-2.6.9-55.0.9.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-hugemem-2.6.9") && rpm_check(release:"EL4", cpu:"i386", reference:"kernel-hugemem-2.6.9-55.0.9.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-hugemem-devel-2.6.9") && rpm_check(release:"EL4", cpu:"i386", reference:"kernel-hugemem-devel-2.6.9-55.0.9.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-largesmp-2.6.9") && rpm_check(release:"EL4", cpu:"x86_64", reference:"kernel-largesmp-2.6.9-55.0.9.0.1.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-2.6.9-55.0.9.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-smp-2.6.9") && rpm_check(release:"EL4", cpu:"i386", reference:"kernel-smp-2.6.9-55.0.9.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-smp-2.6.9") && rpm_check(release:"EL4", cpu:"x86_64", reference:"kernel-smp-2.6.9-55.0.9.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-smp-devel-2.6.9") && rpm_check(release:"EL4", cpu:"i386", reference:"kernel-smp-devel-2.6.9-55.0.9.0.1.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-2.6.9-55.0.9.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-xenU-2.6.9") && rpm_check(release:"EL4", cpu:"i386", reference:"kernel-xenU-2.6.9-55.0.9.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-xenU-2.6.9") && rpm_check(release:"EL4", cpu:"x86_64", reference:"kernel-xenU-2.6.9-55.0.9.0.1.EL")) flag++;
if (rpm_exists(release:"EL4", rpm:"kernel-xenU-devel-2.6.9") && rpm_check(release:"EL4", cpu:"i386", reference:"kernel-xenU-devel-2.6.9-55.0.9.0.1.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-2.6.9-55.0.9.0.1.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");
}