Vulnerabilities > CVE-2018-16542 - Out-of-bounds Write vulnerability in multiple products

#
# (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");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update openSUSE-2019-759.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(123326);
  script_version("1.3");
  script_cvs_date("Date: 2019/04/04 11:19:02");

  script_cve_id("CVE-2018-15908", "CVE-2018-15909", "CVE-2018-15910", "CVE-2018-15911", "CVE-2018-16509", "CVE-2018-16510", "CVE-2018-16511", "CVE-2018-16513", "CVE-2018-16539", "CVE-2018-16540", "CVE-2018-16541", "CVE-2018-16542", "CVE-2018-16543", "CVE-2018-16585", "CVE-2018-16802", "CVE-2018-17183");

  script_name(english:"openSUSE Security Update : ghostscript (openSUSE-2019-759)");
  script_summary(english:"Check for the openSUSE-2019-759 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update for ghostscript to version 9.25 fixes the following 
issues :

These security issues were fixed :

  - CVE-2018-17183: Remote attackers were be able to supply
    crafted PostScript to potentially overwrite or replace
    error handlers to inject code (bsc#1109105)

  - CVE-2018-15909: Prevent type confusion using the .shfill
    operator that could have been used by attackers able to
    supply crafted PostScript files to crash the interpreter
    or potentially execute code (bsc#1106172).

  - CVE-2018-15908: Prevent attackers that are able to
    supply malicious PostScript files to bypass .tempfile
    restrictions and write files (bsc#1106171).

  - CVE-2018-15910: Prevent a type confusion in the
    LockDistillerParams parameter that could have been used
    to crash the interpreter or execute code (bsc#1106173).

  - CVE-2018-15911: Prevent use uninitialized memory access
    in the aesdecode operator that could have been used to
    crash the interpreter or potentially execute code
    (bsc#1106195).

  - CVE-2018-16513: Prevent a type confusion in the setcolor
    function that could have been used to crash the
    interpreter or possibly have unspecified other impact
    (bsc#1107412).

  - CVE-2018-16509: Incorrect 'restoration of privilege'
    checking during handling of /invalidaccess exceptions
    could be have been used by attackers able to supply
    crafted PostScript to execute code using the 'pipe'
    instruction (bsc#1107410).

  - CVE-2018-16510: Incorrect exec stack handling in the
    'CS' and 'SC' PDF primitives could have been used by
    remote attackers able to supply crafted PDFs to crash
    the interpreter or possibly have unspecified other
    impact (bsc#1107411).

  - CVE-2018-16542: Prevent attackers able to supply crafted
    PostScript files from using insufficient interpreter
    stack-size checking during error handling to crash the
    interpreter (bsc#1107413).

  - CVE-2018-16541: Prevent attackers able to supply crafted
    PostScript files from using incorrect free logic in
    pagedevice replacement to crash the interpreter
    (bsc#1107421).

  - CVE-2018-16540: Prevent use-after-free in copydevice
    handling that could have been used to crash the
    interpreter or possibly have unspecified other impact
    (bsc#1107420).

  - CVE-2018-16539: Prevent attackers able to supply crafted
    PostScript files from using incorrect access checking in
    temp file handling to disclose contents of files on the
    system otherwise not readable (bsc#1107422).

  - CVE-2018-16543: gssetresolution and gsgetresolution
    allowed attackers to have an unspecified impact
    (bsc#1107423).

  - CVE-2018-16511: A type confusion in 'ztype' could have
    been used by remote attackers able to supply crafted
    PostScript to crash the interpreter or possibly have
    unspecified other impact (bsc#1107426).

  - CVE-2018-16585: The .setdistillerkeys PostScript command
    was accepted even though it is not intended for use
    during document processing (e.g., after the startup
    phase). This lead to memory corruption, allowing remote
    attackers able to supply crafted PostScript to crash the
    interpreter or possibly have unspecified other impact
    (bsc#1107581).

  - CVE-2018-16802: Incorrect 'restoration of privilege'
    checking when running out of stack during exception
    handling could have been used by attackers able to
    supply crafted PostScript to execute code using the
    'pipe' instruction. This is due to an incomplete fix for
    CVE-2018-16509 (bsc#1108027).

These non-security issues were fixed :

  - Fixes problems with argument handling, some unintended
    results of the security fixes to the SAFER file access
    restrictions (specifically accessing ICC profile files).

  - Avoid that ps2epsi fails with 'Error: /undefined in
    --setpagedevice--'

For additional changes please check
http://www.ghostscript.com/doc/9.25/News.htm

This update was imported from the SUSE:SLE-15:Update update project."
  );
  # http://www.ghostscript.com/doc/9.25/News.htm
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.ghostscript.com/doc/9.25/News.htm"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1106171"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1106172"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1106173"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1106195"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1107410"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1107411"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1107412"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1107413"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1107420"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1107421"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1107422"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1107423"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1107426"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1107581"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1108027"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1109105"
  );
  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:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ghostscript");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ghostscript-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ghostscript-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ghostscript-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ghostscript-mini");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ghostscript-mini-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ghostscript-mini-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ghostscript-mini-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ghostscript-x11");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ghostscript-x11-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libspectre-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libspectre-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libspectre1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libspectre1-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:15.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/08/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/03/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/03/27");
  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 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu");

  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/SuSE/release");
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE");
if (release !~ "^(SUSE15\.0)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "15.0", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);

flag = 0;

if ( rpm_check(release:"SUSE15.0", reference:"ghostscript-9.25-lp150.2.6.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"ghostscript-debuginfo-9.25-lp150.2.6.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"ghostscript-debugsource-9.25-lp150.2.6.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"ghostscript-devel-9.25-lp150.2.6.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"ghostscript-mini-9.25-lp150.2.6.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"ghostscript-mini-debuginfo-9.25-lp150.2.6.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"ghostscript-mini-debugsource-9.25-lp150.2.6.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"ghostscript-mini-devel-9.25-lp150.2.6.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"ghostscript-x11-9.25-lp150.2.6.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"ghostscript-x11-debuginfo-9.25-lp150.2.6.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", cpu:"x86_64", reference:"libspectre-debugsource-0.2.8-lp150.2.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", cpu:"x86_64", reference:"libspectre-devel-0.2.8-lp150.2.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", cpu:"x86_64", reference:"libspectre1-0.2.8-lp150.2.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", cpu:"x86_64", reference:"libspectre1-debuginfo-0.2.8-lp150.2.3.1") ) 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, "ghostscript-mini / ghostscript-mini-debuginfo / etc");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2018:2975-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(117901);
  script_version("1.6");
  script_cvs_date("Date: 2019/09/10 13:51:49");

  script_cve_id("CVE-2018-15908", "CVE-2018-15909", "CVE-2018-15910", "CVE-2018-15911", "CVE-2018-16509", "CVE-2018-16510", "CVE-2018-16511", "CVE-2018-16513", "CVE-2018-16539", "CVE-2018-16540", "CVE-2018-16541", "CVE-2018-16542", "CVE-2018-16543", "CVE-2018-16585", "CVE-2018-16802", "CVE-2018-17183");

  script_name(english:"SUSE SLED12 / SLES12 Security Update : ghostscript (SUSE-SU-2018:2975-1)");
  script_summary(english:"Checks rpm output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote SUSE host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update for ghostscript to version 9.25 fixes the following 
issues :

These security issues were fixed :

CVE-2018-17183: Remote attackers were be able to supply crafted
PostScript to potentially overwrite or replace error handlers to
inject code (bsc#1109105)

CVE-2018-15909: Prevent type confusion using the .shfill operator that
could have been used by attackers able to supply crafted PostScript
files to crash the interpreter or potentially execute code
(bsc#1106172).

CVE-2018-15908: Prevent attackers that are able to supply malicious
PostScript files to bypass .tempfile restrictions and write files
(bsc#1106171).

CVE-2018-15910: Prevent a type confusion in the LockDistillerParams
parameter that could have been used to crash the interpreter or
execute code (bsc#1106173).

CVE-2018-15911: Prevent use uninitialized memory access in the
aesdecode operator that could have been used to crash the interpreter
or potentially execute code (bsc#1106195).

CVE-2018-16513: Prevent a type confusion in the setcolor function that
could have been used to crash the interpreter or possibly have
unspecified other impact (bsc#1107412).

CVE-2018-16509: Incorrect 'restoration of privilege' checking during
handling of /invalidaccess exceptions could be have been used by
attackers able to supply crafted PostScript to execute code using the
'pipe' instruction (bsc#1107410).

CVE-2018-16510: Incorrect exec stack handling in the 'CS' and 'SC' PDF
primitives could have been used by remote attackers able to supply
crafted PDFs to crash the interpreter or possibly have unspecified
other impact (bsc#1107411).

CVE-2018-16542: Prevent attackers able to supply crafted PostScript
files from using insufficient interpreter stack-size checking during
error handling to crash the interpreter (bsc#1107413).

CVE-2018-16541: Prevent attackers able to supply crafted PostScript
files from using incorrect free logic in pagedevice replacement to
crash the interpreter (bsc#1107421).

CVE-2018-16540: Prevent use-after-free in copydevice handling that
could have been used to crash the interpreter or possibly have
unspecified other impact (bsc#1107420).

CVE-2018-16539: Prevent attackers able to supply crafted PostScript
files from using incorrect access checking in temp file handling to
disclose contents of files on the system otherwise not readable
(bsc#1107422).

CVE-2018-16543: gssetresolution and gsgetresolution allowed attackers
to have an unspecified impact (bsc#1107423).

CVE-2018-16511: A type confusion in 'ztype' could have been used by
remote attackers able to supply crafted PostScript to crash the
interpreter or possibly have unspecified other impact (bsc#1107426).

CVE-2018-16585: The .setdistillerkeys PostScript command was accepted
even though it is not intended for use during document processing
(e.g., after the startup phase). This lead to memory corruption,
allowing remote attackers able to supply crafted PostScript to crash
the interpreter or possibly have unspecified other impact
(bsc#1107581).

CVE-2018-16802: Incorrect 'restoration of privilege' checking when
running out of stack during exception handling could have been used by
attackers able to supply crafted PostScript to execute code using the
'pipe' instruction. This is due to an incomplete fix for
CVE-2018-16509 (bsc#1108027).

The update package also includes non-security fixes. See advisory for
details.

Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1106171"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1106172"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1106173"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1106195"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1107410"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1107411"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1107412"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1107413"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1107420"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1107421"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1107422"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1107423"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1107426"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1107581"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1108027"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1109105"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-15908/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-15909/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-15910/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-15911/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-16509/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-16510/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-16511/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-16513/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-16539/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-16540/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-16541/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-16542/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-16543/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-16585/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-16802/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-17183/"
  );
  # https://www.suse.com/support/update/announcement/2018/suse-su-20182975-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?8d3f27e4"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"To install this SUSE Security Update use the SUSE recommended
installation methods like YaST online_update or 'zypper patch'.

Alternatively you can run the command listed for your product :

SUSE OpenStack Cloud 7:zypper in -t patch
SUSE-OpenStack-Cloud-7-2018-2121=1

SUSE Linux Enterprise Software Development Kit 12-SP3:zypper in -t
patch SUSE-SLE-SDK-12-SP3-2018-2121=1

SUSE Linux Enterprise Server for SAP 12-SP2:zypper in -t patch
SUSE-SLE-SAP-12-SP2-2018-2121=1

SUSE Linux Enterprise Server 12-SP3:zypper in -t patch
SUSE-SLE-SERVER-12-SP3-2018-2121=1

SUSE Linux Enterprise Server 12-SP2-LTSS:zypper in -t patch
SUSE-SLE-SERVER-12-SP2-2018-2121=1

SUSE Linux Enterprise Server 12-SP1-LTSS:zypper in -t patch
SUSE-SLE-SERVER-12-SP1-2018-2121=1

SUSE Linux Enterprise Server 12-LTSS:zypper in -t patch
SUSE-SLE-SERVER-12-2018-2121=1

SUSE Linux Enterprise Desktop 12-SP3:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP3-2018-2121=1

SUSE Enterprise Storage 4:zypper in -t patch
SUSE-Storage-4-2018-2121=1"
  );
  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:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:ghostscript");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:ghostscript-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:ghostscript-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:ghostscript-x11");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:ghostscript-x11-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/08/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/10/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/10/03");
  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:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/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/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! preg(pattern:"^(SLED12|SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED12 / SLES12", "SUSE " + os_ver);

if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu);

sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(0|1|2|3)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP0/1/2/3", os_ver + " SP" + sp);
if (os_ver == "SLED12" && (! preg(pattern:"^(3)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP3", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"1", reference:"ghostscript-9.25-23.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"ghostscript-debuginfo-9.25-23.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"ghostscript-debugsource-9.25-23.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"ghostscript-x11-9.25-23.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"ghostscript-x11-debuginfo-9.25-23.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"ghostscript-9.25-23.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"ghostscript-debuginfo-9.25-23.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"ghostscript-debugsource-9.25-23.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"ghostscript-x11-9.25-23.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"ghostscript-x11-debuginfo-9.25-23.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"ghostscript-9.25-23.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"ghostscript-debuginfo-9.25-23.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"ghostscript-debugsource-9.25-23.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"ghostscript-x11-9.25-23.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"ghostscript-x11-debuginfo-9.25-23.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"ghostscript-9.25-23.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"ghostscript-debuginfo-9.25-23.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"ghostscript-debugsource-9.25-23.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"ghostscript-x11-9.25-23.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"ghostscript-x11-debuginfo-9.25-23.13.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"ghostscript-9.25-23.13.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"ghostscript-debuginfo-9.25-23.13.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"ghostscript-debugsource-9.25-23.13.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"ghostscript-x11-9.25-23.13.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"ghostscript-x11-debuginfo-9.25-23.13.1")) 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, "ghostscript");
}

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory FEDORA-2018-56221eb24b.
#

include("compat.inc");

if (description)
{
  script_id(120437);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2018-15909", "CVE-2018-15911", "CVE-2018-16510", "CVE-2018-16539", "CVE-2018-16540", "CVE-2018-16541", "CVE-2018-16542", "CVE-2018-16543");
  script_xref(name:"FEDORA", value:"2018-56221eb24b");

  script_name(english:"Fedora 28 : ghostscript (2018-56221eb24b)");
  script_summary(english:"Checks rpm output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Fedora host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This is a rebase to latest upstream version of `Ghostscript`, which
fixes several high important CVEs recently discovered. It is advised
to update this version as soon as possible.

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as
possible without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bodhi.fedoraproject.org/updates/FEDORA-2018-56221eb24b"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected ghostscript package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/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:P/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:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:ghostscript");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:28");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/08/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/09/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/01/03");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Fedora Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/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/RedHat/release");
if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! preg(pattern:"^28([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 28", "Fedora " + 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 && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);


flag = 0;
if (rpm_check(release:"FC28", reference:"ghostscript-9.24-1.fc28")) flag++;


if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    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");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2018:2918. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(118128);
  script_version("1.8");
  script_cvs_date("Date: 2019/10/24 15:35:45");

  script_cve_id("CVE-2018-10194", "CVE-2018-15910", "CVE-2018-16509", "CVE-2018-16542");
  script_xref(name:"RHSA", value:"2018:2918");

  script_name(english:"RHEL 7 : ghostscript (RHSA-2018:2918)");
  script_summary(english:"Checks the rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Red Hat host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"An update for ghostscript is now available for Red Hat Enterprise
Linux 7.

Red Hat Product Security has rated this update as having a security
impact of Important. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link(s) in the References section.

The Ghostscript suite contains utilities for rendering PostScript and
PDF documents. Ghostscript translates PostScript code to common bitmap
formats so that the code can be displayed or printed.

Security Fix(es) :

* It was discovered that the ghostscript /invalidaccess checks fail
under certain conditions. An attacker could possibly exploit this to
bypass the -dSAFER protection and, for example, execute arbitrary
shell commands via a specially crafted PostScript document.
(CVE-2018-16509)

* ghostscript: LockDistillerParams type confusion (699656)
(CVE-2018-15910)

* ghostscript: .definemodifiedfont memory corruption if /typecheck is
handled (699668) (CVE-2018-16542)

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

For more details about the security issue(s), including the impact, a
CVSS score, and other related information, refer to the CVE page(s)
listed in the References section.

Red Hat would like to thank Tavis Ormandy (Google Project Zero) for
reporting CVE-2018-16509, CVE-2018-15910, and CVE-2018-16542."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2018:2918"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2018-10194"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2018-15910"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2018-16509"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2018-16542"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected 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:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ghostscript");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ghostscript-cups");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ghostscript-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ghostscript-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ghostscript-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ghostscript-gtk");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7.5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7.7");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/04/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/10/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/10/16");
  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:"Red Hat Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 7.x", "Red Hat " + 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 && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2018:2918";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : yum_report 
    );
    exit(0);
  }
  else
  {
    audit_message = "affected by Red Hat security advisory " + rhsa;
    audit(AUDIT_OS_NOT, audit_message);
  }
}
else
{
  flag = 0;
  if (rpm_check(release:"RHEL7", reference:"ghostscript-9.07-29.el7_5.2")) flag++;

  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"ghostscript-cups-9.07-29.el7_5.2")) flag++;

  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"ghostscript-cups-9.07-29.el7_5.2")) flag++;

  if (rpm_check(release:"RHEL7", reference:"ghostscript-debuginfo-9.07-29.el7_5.2")) flag++;

  if (rpm_check(release:"RHEL7", reference:"ghostscript-devel-9.07-29.el7_5.2")) flag++;

  if (rpm_check(release:"RHEL7", reference:"ghostscript-doc-9.07-29.el7_5.2")) flag++;

  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"ghostscript-gtk-9.07-29.el7_5.2")) flag++;

  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"ghostscript-gtk-9.07-29.el7_5.2")) flag++;


  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : rpm_report_get() + redhat_report_package_caveat()
    );
    exit(0);
  }
  else
  {
    tested = pkg_tests_get();
    if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
    else audit(AUDIT_PACKAGE_NOT_INSTALLED, "ghostscript / ghostscript-cups / ghostscript-debuginfo / etc");
  }
}

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

include("compat.inc");

if (description)
{
  script_id(123862);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/19");

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

  script_name(english:"EulerOS Virtualization 2.5.3 : ghostscript (EulerOS-SA-2019-1176)");
  script_summary(english:"Checks the rpm output for the updated packages.");

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

  - The set_text_distance function in
    devices/vector/gdevpdts.c in the pdfwrite component in
    Artifex Ghostscript through 9.22 does not prevent
    overflows in text-positioning calculation, which allows
    remote attackers to cause a denial of service
    (application crash) or possibly have unspecified other
    impact via a crafted PDF document.i1/4^CVE-2018-10194i1/4%0

  - It was discovered that the type of the
    LockDistillerParams parameter is not properly verified.
    An attacker could possibly exploit this to bypass the
    -dSAFER protection and crash ghostscript or, possibly,
    execute arbitrary code in the ghostscript context via a
    specially crafted PostScript
    document.i1/4^CVE-2018-15910i1/4%0

  - It was discovered that the ghostscript /invalidaccess
    checks fail under certain conditions. An attacker could
    possibly exploit this to bypass the -dSAFER protection
    and, for example, execute arbitrary shell commands via
    a specially crafted PostScript
    document.i1/4^CVE-2018-16509i1/4%0

  - It was discovered that ghostscript did not properly
    handle certain stack overflow error conditions. An
    attacker could possibly exploit this to bypass the
    -dSAFER protection and crash ghostscript or, possibly,
    execute arbitrary code in the ghostscript context via a
    specially crafted PostScript
    document.i1/4^CVE-2018-16542i1/4%0

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-2019-1176
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?53cb28d9");
  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:"2019/04/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/04/09");

  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:"cpe:/o:huawei:euleros:uvp:2.5.3");
  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) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "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");
uvp = get_kb_item("Host/EulerOS/uvp_version");
if (uvp != "2.5.3") audit(AUDIT_OS_NOT, "EulerOS Virtualization 2.5.3");
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"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", 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");
}