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nessusThis script is Copyright (C) 2019-2024 and is owned by Tenable, Inc. or an Affiliate thereof.ORACLEVM_OVMSA-2019-0026.NASL
HistoryJun 19, 2019 - 12:00 a.m.

OracleVM 3.4 : Unbreakable / etc (OVMSA-2019-0026) (SACK Panic) (SACK Slowness)

2019-06-1900:00:00
This script is Copyright (C) 2019-2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
32

7.8 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

8.3 High

AI Score

Confidence

High

0.974 High

EPSS

Percentile

99.9%

The remote OracleVM system is missing necessary patches to address critical security updates :

  • Add CVE numbers for CVE-2019-11477 CVE-2019-11478 CVE-2019-11479 (Chuck Anderson) [Orabug: 29890820] (CVE-2019-11477) (CVE-2019-11478) (CVE-2019-11479) (CVE-2019-11477) (CVE-2019-11478) (CVE-2019-11479)

  • tcp: fix fack_count accounting on tcp_shift_skb_data (Joao Martins) [Orabug: 29890820]

  • tcp: enforce tcp_min_snd_mss in tcp_mtu_probing (Eric Dumazet) [Orabug: 29886598]

  • tcp: add tcp_min_snd_mss sysctl (Eric Dumazet) [Orabug:
    29884306]

  • tcp: tcp_fragment should apply sane memory limits (Eric Dumazet) [Orabug: 29884306]

  • tcp: limit payload size of sacked skbs (Eric Dumazet) [Orabug: 29884306]

#
# (C) Tenable Network Security, Inc.
#
# The package checks in this plugin were extracted from OracleVM
# Security Advisory OVMSA-2019-0026.
#

include('compat.inc');

if (description)
{
  script_id(126020);
  script_version("1.8");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/15");

  script_cve_id("CVE-2019-11477", "CVE-2019-11478", "CVE-2019-11479");
  script_xref(name:"CEA-ID", value:"CEA-2019-0456");

  script_name(english:"OracleVM 3.4 : Unbreakable / etc (OVMSA-2019-0026) (SACK Panic) (SACK Slowness)");

  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 :

  - Add CVE numbers for CVE-2019-11477 CVE-2019-11478
    CVE-2019-11479 (Chuck Anderson) [Orabug: 29890820]
    (CVE-2019-11477) (CVE-2019-11478) (CVE-2019-11479)
    (CVE-2019-11477) (CVE-2019-11478) (CVE-2019-11479)

  - tcp: fix fack_count accounting on tcp_shift_skb_data
    (Joao Martins) [Orabug: 29890820]

  - tcp: enforce tcp_min_snd_mss in tcp_mtu_probing (Eric
    Dumazet) [Orabug: 29886598]

  - tcp: add tcp_min_snd_mss sysctl (Eric Dumazet) [Orabug:
    29884306]

  - tcp: tcp_fragment should apply sane memory limits (Eric
    Dumazet) [Orabug: 29884306]

  - tcp: limit payload size of sacked skbs (Eric Dumazet)
    [Orabug: 29884306]");
  script_set_attribute(attribute:"see_also", value:"https://oss.oracle.com/pipermail/oraclevm-errata/2019-June/000945.html");
  script_set_attribute(attribute:"solution", value:
"Update the affected kernel-uek / kernel-uek-firmware packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-11477");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2019-11479");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_set_attribute(attribute:"in_the_news", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/06/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/06/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/06/19");

  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:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"OracleVM Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2019-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  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-4.1.12-124.28.3.el6uek")) flag++;
if (rpm_check(release:"OVS3.4", reference:"kernel-uek-firmware-4.1.12-124.28.3.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");
}
VendorProductVersionCPE
oraclevmkernel-uekp-cpe:/a:oracle:vm:kernel-uek
oraclevm_server3.4cpe:/o:oracle:vm_server:3.4
oraclevmkernel-uek-firmwarep-cpe:/a:oracle:vm:kernel-uek-firmware

7.8 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

8.3 High

AI Score

Confidence

High

0.974 High

EPSS

Percentile

99.9%