OracleVM 3.4 : Unbreakable / etc (OVMSA-2019-0035) (Spectre)

#
# (C) Tenable Network Security, Inc.
#
# The package checks in this plugin were extracted from OracleVM
# Security Advisory OVMSA-2019-0035.
#

include("compat.inc");

if (description)
{
  script_id(126670);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/04/16");

  script_cve_id("CVE-2017-18208", "CVE-2017-5715", "CVE-2018-7191", "CVE-2019-6133");

  script_name(english:"OracleVM 3.4 : Unbreakable / etc (OVMSA-2019-0035) (Spectre)");
  script_summary(english:"Checks the RPM output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis",
    value:"The remote OracleVM host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description",
    value:
"The remote OracleVM system is missing necessary patches to address
critical security updates :

  - scsi: libfc: Fixup disc_mutex handling in fcoe module
    (Hannes Reinecke) [Orabug: 29511036]

  - scsi: libfc: sanitize E_D_TOV and R_A_TOV setting in fcp
    (Hannes Reinecke) [Orabug: 29511036]

  - sysctl: Fix kabi breakage (Shuning Zhang) [Orabug:
    29689925]

  - proc: Fix proc_sys_prune_dcache to hold a sb reference
    (Eric W. Biederman) [Orabug: 29689925]

  - proc/sysctl: Don't grab i_lock under sysctl_lock. (Eric
    W. Biederman) [Orabug: 29689925]

  - proc/sysctl: prune stale dentries during unregistering
    (Konstantin Khlebnikov) [Orabug: 29689925]

  - scsi: smartpqi: correct lun reset issues (Kevin Barnett)
    [Orabug: 29848621]

  - fork: record start_time late (David Herrmann) [Orabug:
    29850581] (CVE-2019-6133)

  - mm: avoid taking zone lock in pagetypeinfo_showmixed
    (Vinayak Menon) [Orabug: 29905302]

  - x86/retpoline/ia32entry: Convert to non-speculative
    calls (Ankur Arora) [Orabug: 29909295] (CVE-2017-5715)

  - tun: call dev_get_valid_name before register_netdevice
    (Cong Wang) [Orabug: 29925555] (CVE-2018-7191)

  - mm/madvise.c: fix madvise infinite loop under special
    circumstances (chenjie) [Orabug: 29925610]
    (CVE-2017-18208)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/oraclevm-errata/2019-July/000953.html"
  );
  script_set_attribute(
    attribute:"solution",
    value:"Update the affected kernel-uek / kernel-uek-firmware packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:H/PR:L/UI:R/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:"cvss_score_source", value:"CVE-2019-6133");
  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:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:kernel-uek");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:kernel-uek-firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:vm_server:3.4");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/01/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/07/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/07/15");
  script_set_attribute(attribute:"in_the_news", value:"true");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"OracleVM Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/OracleVM/release", "Host/OracleVM/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/OracleVM/release");
if (isnull(release) || "OVS" >!< release) audit(AUDIT_OS_NOT, "OracleVM");
if (! preg(pattern:"^OVS" + "3\.4" + "(\.[0-9]|$)", string:release)) audit(AUDIT_OS_NOT, "OracleVM 3.4", "OracleVM " + release);
if (!get_kb_item("Host/OracleVM/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

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

flag = 0;
if (rpm_check(release:"OVS3.4", reference:"kernel-uek-4.1.12-124.28.6.el6uek")) flag++;
if (rpm_check(release:"OVS3.4", reference:"kernel-uek-firmware-4.1.12-124.28.6.el6uek")) flag++;

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