EulerOS 2.0 SP3 : ghostscript (EulerOS-SA-2018-1404)

2018-12-10T00:00:00
ID EULEROS_SA-2018-1404.NASL
Type nessus
Reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2018-12-10T00:00:00

Description

According to the versions of the ghostscript packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  • ghostscript: /invalidaccess bypass after failed restore.(CVE-2018-16509)

  • ghostscript: LockDistillerParams type confusion.(CVE-2018-15910)

  • ghostscript: definemodifiedfont memory corruption if /typecheck is handled.(CVE-2018-16542)

  • ghostscript: Stack-based out-of-bounds write in pdf_set_text_matrix function in gdevpdts.c (CVE-2018-10194)

  • ghostscript: incorrect free logic in pagedevice replacement.(CVE-2018-16541)

  • ghostscript: incorrect access checking in temp file handling to disclose contents of files.(CVE-2018-16539)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(119532);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/04");

  script_cve_id(
    "CVE-2018-10194",
    "CVE-2018-15910",
    "CVE-2018-16509",
    "CVE-2018-16539",
    "CVE-2018-16541",
    "CVE-2018-16542"
  );

  script_name(english:"EulerOS 2.0 SP3 : ghostscript (EulerOS-SA-2018-1404)");
  script_summary(english:"Checks the rpm output for the updated packages.");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing multiple security updates.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the ghostscript packages installed, the
EulerOS installation on the remote host is affected by the following
vulnerabilities :

  - ghostscript: /invalidaccess bypass after failed
    restore.(CVE-2018-16509)

  - ghostscript: LockDistillerParams type
    confusion.(CVE-2018-15910)

  - ghostscript: definemodifiedfont memory corruption if
    /typecheck is handled.(CVE-2018-16542)

  - ghostscript: Stack-based out-of-bounds write in
    pdf_set_text_matrix function in gdevpdts.c
    (CVE-2018-10194)

  - ghostscript: incorrect free logic in pagedevice
    replacement.(CVE-2018-16541)

  - ghostscript: incorrect access checking in temp file
    handling to disclose contents of files.(CVE-2018-16539)

Note that Tenable Network Security has extracted the preceding
description block directly from the EulerOS security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
  # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2018-1404
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?02031079");
  script_set_attribute(attribute:"solution", value:
"Update the affected ghostscript packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/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:"metasploit_name", value:'Ghostscript Failed Restore Command Execution');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"patch_publication_date", value:"2018/11/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/12/10");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:ghostscript");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:ghostscript-cups");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp");
  script_exclude_keys("Host/EulerOS/uvp_version");

  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/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0");

sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(3)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP3");

uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP3", "EulerOS UVP " + uvp);

if (!get_kb_item("Host/EulerOS/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$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);

flag = 0;

pkgs = ["ghostscript-9.07-29.2.h5",
        "ghostscript-cups-9.07-29.2.h5"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"3", reference:pkg)) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "ghostscript");
}