OracleVM 3.3 : Unbreakable / etc (OVMSA-2018-0237)

#
# (C) Tenable Network Security, Inc.
#
# The package checks in this plugin were extracted from OracleVM
# Security Advisory OVMSA-2018-0237.
#

include("compat.inc");

if (description)
{
  script_id(111022);
  script_version("1.4");
  script_cvs_date("Date: 2019/09/27 13:00:35");

  script_cve_id("CVE-2015-8575", "CVE-2016-2384", "CVE-2016-2543", "CVE-2016-2544", "CVE-2016-2545", "CVE-2016-2547", "CVE-2016-2548", "CVE-2016-2549", "CVE-2017-1000410", "CVE-2017-11600", "CVE-2017-17741", "CVE-2017-18203", "CVE-2017-7616", "CVE-2017-8824", "CVE-2018-1000199", "CVE-2018-10087", "CVE-2018-10124", "CVE-2018-10323", "CVE-2018-1130", "CVE-2018-3665", "CVE-2018-5803", "CVE-2018-8781");

  script_name(english:"OracleVM 3.3 : Unbreakable / etc (OVMSA-2018-0237)");
  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 :

  - dm: fix race between dm_get_from_kobject and
    __dm_destroy (Hou Tao) (CVE-2017-18203)

  - drm: udl: Properly check framebuffer mmap offsets (Greg
    Kroah-Hartman) [Orabug: 27986407] (CVE-2018-8781)

  - kernel/exit.c: avoid undefined behaviour when calling
    wait4 wait4(-2147483648, 0x20, 0, 0xdd0000) triggers:
    UBSAN: Undefined behaviour in kernel/exit.c:1651:9
    (mridula shastry) [Orabug: 27875488] (CVE-2018-10087)

  - kernel/signal.c: avoid undefined behaviour in
    kill_something_info When running kill(72057458746458112,
    0) in userspace I hit the following issue. (mridula
    shastry) (CVE-2018-10124)

  - bluetooth: Validate socket address length in
    sco_sock_bind. (mlevatic) [Orabug: 28130293]
    (CVE-2015-8575)

  - dccp: check sk for closed state in dccp_sendmsg (Alexey
    Kodanev) [Orabug: 28220402] (CVE-2017-8824)
    (CVE-2018-1130)

  - sctp: verify size of a new chunk in _sctp_make_chunk
    (Alexey Kodanev) [Orabug: 28240075] (CVE-2018-5803)

  - mm/mempolicy.c: fix error handling in set_mempolicy and
    mbind. (Chris Salls) [Orabug: 28242478] (CVE-2017-7616)

  - xfrm: policy: check policy direction value (Vladis
    Dronov) [Orabug: 28264121] (CVE-2017-11600)
    (CVE-2017-11600)

  - x86/fpu: Make eager FPU default (Mihai Carabas) [Orabug:
    28156176] (CVE-2018-3665)

  - KVM: Fix stack-out-of-bounds read in write_mmio (Wanpeng
    Li) [Orabug: 27951287] (CVE-2017-17741) (CVE-2017-17741)

  - xfs: set format back to extents if
    xfs_bmap_extents_to_btree (Eric Sandeen) [Orabug:
    27989498] (CVE-2018-10323)

  - Bluetooth: Prevent stack info leak from the EFS element.
    (Ben Seri) [Orabug: 28030520] (CVE-2017-1000410)
    (CVE-2017-1000410)

  - ALSA: hrtimer: Fix stall by hrtimer_cancel (Takashi
    Iwai) [Orabug: 28058229] (CVE-2016-2549)

  - ALSA: timer: Harden slave timer list handling (Takashi
    Iwai) [Orabug: 28058229] (CVE-2016-2547) (CVE-2016-2548)

  - ALSA: timer: Fix double unlink of active_list (Takashi
    Iwai) [Orabug: 28058229] (CVE-2016-2545)

  - ALSA: seq: Fix missing NULL check at remove_events ioctl
    (Takashi Iwai) [Orabug: 28058229] (CVE-2016-2543)

  - ALSA: seq: Fix race at timer setup and close (Takashi
    Iwai) [Orabug: 28058229] (CVE-2016-2544)

  - ALSA: usb-audio: avoid freeing umidi object twice
    (Andrey Konovalov) [Orabug: 28058229] (CVE-2016-2384)

  - perf/hwbp: Simplify the perf-hwbp code, fix
    documentation (Linus Torvalds) [Orabug: 27947608]
    (CVE-2018-1000199)

  - Revert 'perf/hwbp: Simplify the perf-hwbp code, fix
    documentation' (Brian Maly) [Orabug: 27947608]"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/oraclevm-errata/2018-July/000874.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:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC: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");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
  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:3.3");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/02/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/07/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/07/12");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2019 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\.3" + "(\.[0-9]|$)", string:release)) audit(AUDIT_OS_NOT, "OracleVM 3.3", "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:"OVS3.3", reference:"kernel-uek-3.8.13-118.22.1.el6uek")) flag++;
if (rpm_check(release:"OVS3.3", reference:"kernel-uek-firmware-3.8.13-118.22.1.el6uek")) 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-uek / kernel-uek-firmware");
}