Vulnerabilities > CVE-2016-8602 - Incorrect Type Conversion or Cast vulnerability in Artifex Ghostscript
Attack vector
LOCAL Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
The .sethalftone5 function in psi/zht2.c in Ghostscript before 9.21 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted Postscript document that calls .sethalftone5 with an empty operand stack.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Nessus
NASL family Fedora Local Security Checks NASL id FEDORA_2016-3DAD5DFD03.NASL description This update fixes a rare ocasion where ghostscript would fail when displaying *.ps files. More info can be found [here](http://bugs.ghostscript.com/show_bug.cgi?id=697286). ---- This is a security update for these CVEs : - [CVE-2016-8602](https://bugzilla.redhat.com/show_bug.cgi ?id=1383940) - *check for sufficient params in .sethalftone5* - [CVE-2016-7977](https://bugzilla.redhat.com/show_bug.cgi ?id=1380415) - *.libfile does not honor -dSAFER* [This CVE is now correctly fixed, previous release was accidentally missing the fix.] 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. last seen 2020-06-05 modified 2016-11-08 plugin id 94615 published 2016-11-08 reporter This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/94615 title Fedora 24 : ghostscript (2016-3dad5dfd03) code #%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-2016-3dad5dfd03. # include("compat.inc"); if (description) { script_id(94615); script_version("2.5"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04"); script_cve_id("CVE-2016-7977", "CVE-2016-8602"); script_xref(name:"FEDORA", value:"2016-3dad5dfd03"); script_name(english:"Fedora 24 : ghostscript (2016-3dad5dfd03)"); 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 update fixes a rare ocasion where ghostscript would fail when displaying *.ps files. More info can be found [here](http://bugs.ghostscript.com/show_bug.cgi?id=697286). ---- This is a security update for these CVEs : - [CVE-2016-8602](https://bugzilla.redhat.com/show_bug.cgi ?id=1383940) - *check for sufficient params in .sethalftone5* - [CVE-2016-7977](https://bugzilla.redhat.com/show_bug.cgi ?id=1380415) - *.libfile does not honor -dSAFER* [This CVE is now correctly fixed, previous release was accidentally missing the fix.] 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-2016-3dad5dfd03" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1380415" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1383940" ); 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_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"); 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:24"); script_set_attribute(attribute:"vuln_publication_date", value:"2017/04/14"); script_set_attribute(attribute:"patch_publication_date", value:"2016/11/07"); script_set_attribute(attribute:"plugin_publication_date", value:"2016/11/08"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2016-2020 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:"^24([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 24", "Fedora " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu); flag = 0; if (rpm_check(release:"FC24", reference:"ghostscript-9.20-5.fc24")) 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"); }NASL family SuSE Local Security Checks NASL id OPENSUSE-2016-1237.NASL description This update for ghostscript fixes the following issues : - CVE-2016-8602: Fixes a NULL dereference in .sethalftone5 (boo#1004237). - CVE-2013-5653, CVE-2016-7978, CVE-2016-7979: Fix multiple -dsafer related CVE last seen 2020-06-05 modified 2016-10-27 plugin id 94311 published 2016-10-27 reporter This script is Copyright (C) 2016-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/94311 title openSUSE Security Update : ghostscript (openSUSE-2016-1237) code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from openSUSE Security Update openSUSE-2016-1237. # # The text description of this plugin is (C) SUSE LLC. # include("compat.inc"); if (description) { script_id(94311); script_version("2.7"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04"); script_cve_id("CVE-2013-5653", "CVE-2016-7978", "CVE-2016-7979", "CVE-2016-8602"); script_name(english:"openSUSE Security Update : ghostscript (openSUSE-2016-1237)"); script_summary(english:"Check for the openSUSE-2016-1237 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 fixes the following issues : - CVE-2016-8602: Fixes a NULL dereference in .sethalftone5 (boo#1004237). - CVE-2013-5653, CVE-2016-7978, CVE-2016-7979: Fix multiple -dsafer related CVE's (boo#1001951)." ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1001951" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1004237" ); script_set_attribute( attribute:"solution", value:"Update the affected ghostscript packages." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"); 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:"cpe:/o:novell:opensuse:13.2"); script_set_attribute(attribute:"patch_publication_date", value:"2016/10/26"); script_set_attribute(attribute:"plugin_publication_date", value:"2016/10/27"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2016-2020 Tenable Network Security, Inc."); 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 !~ "^(SUSE13\.2)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "13.2", release); if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); ourarch = get_kb_item("Host/cpu"); if (!ourarch) audit(AUDIT_UNKNOWN_ARCH); if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch); flag = 0; if ( rpm_check(release:"SUSE13.2", reference:"ghostscript-9.15-6.1") ) flag++; if ( rpm_check(release:"SUSE13.2", reference:"ghostscript-debuginfo-9.15-6.1") ) flag++; if ( rpm_check(release:"SUSE13.2", reference:"ghostscript-debugsource-9.15-6.1") ) flag++; if ( rpm_check(release:"SUSE13.2", reference:"ghostscript-devel-9.15-6.1") ) flag++; if ( rpm_check(release:"SUSE13.2", reference:"ghostscript-mini-9.15-6.1") ) flag++; if ( rpm_check(release:"SUSE13.2", reference:"ghostscript-mini-debuginfo-9.15-6.1") ) flag++; if ( rpm_check(release:"SUSE13.2", reference:"ghostscript-mini-debugsource-9.15-6.1") ) flag++; if ( rpm_check(release:"SUSE13.2", reference:"ghostscript-mini-devel-9.15-6.1") ) flag++; if ( rpm_check(release:"SUSE13.2", reference:"ghostscript-x11-9.15-6.1") ) flag++; if ( rpm_check(release:"SUSE13.2", reference:"ghostscript-x11-debuginfo-9.15-6.1") ) 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"); }NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-3148-1.NASL description Tavis Ormandy discovered multiple vulnerabilities in the way that Ghostscript processes certain Postscript files. If a user or automated system were tricked into opening a specially crafted file, an attacker could cause a denial of service or possibly execute arbitrary code. (CVE-2016-7976, CVE-2016-7978, CVE-2016-7979, CVE-2016-8602) Multiple vulnerabilities were discovered in Ghostscript related to information disclosure. If a user or automated system were tricked into opening a specially crafted file, an attacker could expose sensitive data. (CVE-2013-5653, CVE-2016-7977). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 95467 published 2016-12-02 reporter Ubuntu Security Notice (C) 2016-2019 Canonical, Inc. / NASL script (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/95467 title Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS / 16.10 : ghostscript vulnerabilities (USN-3148-1) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Ubuntu Security Notice USN-3148-1. The text # itself is copyright (C) Canonical, Inc. See # <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered # trademark of Canonical, Inc. # include("compat.inc"); if (description) { script_id(95467); script_version("3.10"); script_cvs_date("Date: 2019/09/18 12:31:46"); script_cve_id("CVE-2013-5653", "CVE-2016-7976", "CVE-2016-7977", "CVE-2016-7978", "CVE-2016-7979", "CVE-2016-8602"); script_xref(name:"USN", value:"3148-1"); script_name(english:"Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS / 16.10 : ghostscript vulnerabilities (USN-3148-1)"); script_summary(english:"Checks dpkg output for updated packages."); script_set_attribute( attribute:"synopsis", value: "The remote Ubuntu host is missing one or more security-related patches." ); script_set_attribute( attribute:"description", value: "Tavis Ormandy discovered multiple vulnerabilities in the way that Ghostscript processes certain Postscript files. If a user or automated system were tricked into opening a specially crafted file, an attacker could cause a denial of service or possibly execute arbitrary code. (CVE-2016-7976, CVE-2016-7978, CVE-2016-7979, CVE-2016-8602) Multiple vulnerabilities were discovered in Ghostscript related to information disclosure. If a user or automated system were tricked into opening a specially crafted file, an attacker could expose sensitive data. (CVE-2013-5653, CVE-2016-7977). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu 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://usn.ubuntu.com/3148-1/" ); script_set_attribute(attribute:"solution", value:"Update the affected packages."); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P"); 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:H/I:H/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"exploit_available", value:"false"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:ghostscript"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:ghostscript-x"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libgs9"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libgs9-common"); script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:12.04:-:lts"); script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.04"); script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04"); script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.10"); script_set_attribute(attribute:"vuln_publication_date", value:"2017/03/07"); script_set_attribute(attribute:"patch_publication_date", value:"2016/12/01"); script_set_attribute(attribute:"plugin_publication_date", value:"2016/12/02"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"Ubuntu Security Notice (C) 2016-2019 Canonical, Inc. / NASL script (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Ubuntu Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l"); exit(0); } include("audit.inc"); include("ubuntu.inc"); include("misc_func.inc"); if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/Ubuntu/release"); if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu"); release = chomp(release); if (! preg(pattern:"^(12\.04|14\.04|16\.04|16\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 12.04 / 14.04 / 16.04 / 16.10", "Ubuntu " + release); if ( ! get_kb_item("Host/Debian/dpkg-l") ) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Ubuntu", cpu); flag = 0; if (ubuntu_check(osver:"12.04", pkgname:"ghostscript", pkgver:"9.05~dfsg-0ubuntu4.4")) flag++; if (ubuntu_check(osver:"12.04", pkgname:"ghostscript-x", pkgver:"9.05~dfsg-0ubuntu4.4")) flag++; if (ubuntu_check(osver:"12.04", pkgname:"libgs9", pkgver:"9.05~dfsg-0ubuntu4.4")) flag++; if (ubuntu_check(osver:"12.04", pkgname:"libgs9-common", pkgver:"9.05~dfsg-0ubuntu4.4")) flag++; if (ubuntu_check(osver:"14.04", pkgname:"ghostscript", pkgver:"9.10~dfsg-0ubuntu10.5")) flag++; if (ubuntu_check(osver:"14.04", pkgname:"ghostscript-x", pkgver:"9.10~dfsg-0ubuntu10.5")) flag++; if (ubuntu_check(osver:"14.04", pkgname:"libgs9", pkgver:"9.10~dfsg-0ubuntu10.5")) flag++; if (ubuntu_check(osver:"14.04", pkgname:"libgs9-common", pkgver:"9.10~dfsg-0ubuntu10.5")) flag++; if (ubuntu_check(osver:"16.04", pkgname:"ghostscript", pkgver:"9.18~dfsg~0-0ubuntu2.2")) flag++; if (ubuntu_check(osver:"16.04", pkgname:"ghostscript-x", pkgver:"9.18~dfsg~0-0ubuntu2.2")) flag++; if (ubuntu_check(osver:"16.04", pkgname:"libgs9", pkgver:"9.18~dfsg~0-0ubuntu2.2")) flag++; if (ubuntu_check(osver:"16.04", pkgname:"libgs9-common", pkgver:"9.18~dfsg~0-0ubuntu2.2")) flag++; if (ubuntu_check(osver:"16.10", pkgname:"ghostscript", pkgver:"9.19~dfsg+1-0ubuntu6.2")) flag++; if (ubuntu_check(osver:"16.10", pkgname:"ghostscript-x", pkgver:"9.19~dfsg+1-0ubuntu6.2")) flag++; if (ubuntu_check(osver:"16.10", pkgname:"libgs9", pkgver:"9.19~dfsg+1-0ubuntu6.2")) flag++; if (ubuntu_check(osver:"16.10", pkgname:"libgs9-common", pkgver:"9.19~dfsg+1-0ubuntu6.2")) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_HOLE, extra : ubuntu_report_get() ); exit(0); } else { tested = ubuntu_pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "ghostscript / ghostscript-x / libgs9 / libgs9-common"); }NASL family Fedora Local Security Checks NASL id FEDORA_2016-62F2B66ED1.NASL description This is a security update for these CVEs : - [CVE-2016-8602](https://bugzilla.redhat.com/show_bug.cgi ?id=1383940) - *check for sufficient params in .sethalftone5* - [CVE-2016-7977](https://bugzilla.redhat.com/show_bug.cgi ?id=1380415) - *.libfile does not honor -dSAFER* [This CVE is now correctly fixed, previous release was accidentally missing the fix.] 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. last seen 2020-06-05 modified 2016-11-21 plugin id 95004 published 2016-11-21 reporter This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/95004 title Fedora 25 : ghostscript (2016-62f2b66ed1) NASL family Virtuozzo Local Security Checks NASL id VIRTUOZZO_VZLSA-2017-0014.NASL description An update for ghostscript is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Moderate. 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 found that the ghostscript functions getenv, filenameforall and .libfile did not honor the -dSAFER option, usually used when processing untrusted documents, leading to information disclosure. A specially crafted postscript document could read environment variable, list directory and retrieve file content respectively, from the target. (CVE-2013-5653, CVE-2016-7977) * It was found that the ghostscript function .initialize_dsc_parser did not validate its parameter before using it, allowing a type confusion flaw. A specially crafted postscript document could cause a crash code execution in the context of the gs process. (CVE-2016-7979) * It was found that ghostscript did not sufficiently check the validity of parameters given to the .sethalftone5 function. A specially crafted postscript document could cause a crash, or execute arbitrary code in the context of the gs process. (CVE-2016-8602) Note that Tenable Network Security has attempted to extract the preceding description block directly from the corresponding Red Hat security advisory. Virtuozzo provides no description for VZLSA advisories. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 101400 published 2017-07-13 reporter This script is Copyright (C) 2017-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/101400 title Virtuozzo 6 : ghostscript / ghostscript-devel / ghostscript-doc / etc (VZLSA-2017-0014) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2017-0013.NASL description From Red Hat Security Advisory 2017:0013 : 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 Moderate. 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 found that the ghostscript functions getenv, filenameforall and .libfile did not honor the -dSAFER option, usually used when processing untrusted documents, leading to information disclosure. A specially crafted postscript document could read environment variable, list directory and retrieve file content respectively, from the target. (CVE-2013-5653, CVE-2016-7977) * It was found that the ghostscript function .setdevice suffered a use-after-free vulnerability due to an incorrect reference count. A specially crafted postscript document could trigger code execution in the context of the gs process. (CVE-2016-7978) * It was found that the ghostscript function .initialize_dsc_parser did not validate its parameter before using it, allowing a type confusion flaw. A specially crafted postscript document could cause a crash code execution in the context of the gs process. (CVE-2016-7979) * It was found that ghostscript did not sufficiently check the validity of parameters given to the .sethalftone5 function. A specially crafted postscript document could cause a crash, or execute arbitrary code in the context of the gs process. (CVE-2016-8602) last seen 2020-06-01 modified 2020-06-02 plugin id 96298 published 2017-01-05 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/96298 title Oracle Linux 7 : ghostscript (ELSA-2017-0013) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2016-1050.NASL description According to the versions of the ghostscript packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - It was found that the ghostscript functions getenv, filenameforall and .libfile did not honor the -dSAFER option, usually used when processing untrusted documents, leading to information disclosure. A specially crafted postscript document could read environment variable, list directory and retrieve file content respectively, from the target. (CVE-2013-5653, CVE-2016-7977) - It was found that the ghostscript function .setdevice suffered a use-after-free vulnerability due to an incorrect reference count. A specially crafted postscript document could trigger code execution in the context of the gs process. (CVE-2016-7978) - It was found that the ghostscript function .initialize_dsc_parser did not validate its parameter before using it, allowing a type confusion flaw. A specially crafted postscript document could cause a crash code execution in the context of the gs process. (CVE-2016-7979) - It was found that ghostscript did not sufficiently check the validity of parameters given to the .sethalftone5 function. A specially crafted postscript document could cause a crash, or execute arbitrary code in the context of the gs process. (CVE-2016-8602) 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. last seen 2020-05-06 modified 2017-05-01 plugin id 99813 published 2017-05-01 reporter This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/99813 title EulerOS 2.0 SP1 : ghostscript (EulerOS-SA-2016-1050) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2017-0014.NASL description From Red Hat Security Advisory 2017:0014 : An update for ghostscript is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Moderate. 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 found that the ghostscript functions getenv, filenameforall and .libfile did not honor the -dSAFER option, usually used when processing untrusted documents, leading to information disclosure. A specially crafted postscript document could read environment variable, list directory and retrieve file content respectively, from the target. (CVE-2013-5653, CVE-2016-7977) * It was found that the ghostscript function .initialize_dsc_parser did not validate its parameter before using it, allowing a type confusion flaw. A specially crafted postscript document could cause a crash code execution in the context of the gs process. (CVE-2016-7979) * It was found that ghostscript did not sufficiently check the validity of parameters given to the .sethalftone5 function. A specially crafted postscript document could cause a crash, or execute arbitrary code in the context of the gs process. (CVE-2016-8602) last seen 2020-06-01 modified 2020-06-02 plugin id 96299 published 2017-01-05 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/96299 title Oracle Linux 6 : ghostscript (ELSA-2017-0014) NASL family Debian Local Security Checks NASL id DEBIAN_DSA-3691.NASL description Several vulnerabilities were discovered in Ghostscript, the GPL PostScript/PDF interpreter, which may lead to the execution of arbitrary code or information disclosure if a specially crafted Postscript file is processed. last seen 2020-06-01 modified 2020-06-02 plugin id 94023 published 2016-10-13 reporter This script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/94023 title Debian DSA-3691-1 : ghostscript - security update NASL family Scientific Linux Local Security Checks NASL id SL_20170104_GHOSTSCRIPT_ON_SL6_X.NASL description Security Fix(es) : - It was found that the ghostscript functions getenv, filenameforall and .libfile did not honor the -dSAFER option, usually used when processing untrusted documents, leading to information disclosure. A specially crafted postscript document could read environment variable, list directory and retrieve file content respectively, from the target. (CVE-2013-5653, CVE-2016-7977) - It was found that the ghostscript function .initialize_dsc_parser did not validate its parameter before using it, allowing a type confusion flaw. A specially crafted postscript document could cause a crash code execution in the context of the gs process. (CVE-2016-7979) - It was found that ghostscript did not sufficiently check the validity of parameters given to the .sethalftone5 function. A specially crafted postscript document could cause a crash, or execute arbitrary code in the context of the gs process. (CVE-2016-8602) last seen 2020-03-18 modified 2017-01-05 plugin id 96301 published 2017-01-05 reporter This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/96301 title Scientific Linux Security Update : ghostscript on SL6.x i386/x86_64 (20170104) NASL family Virtuozzo Local Security Checks NASL id VIRTUOZZO_VZLSA-2017-0013.NASL description 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 Moderate. 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 found that the ghostscript functions getenv, filenameforall and .libfile did not honor the -dSAFER option, usually used when processing untrusted documents, leading to information disclosure. A specially crafted postscript document could read environment variable, list directory and retrieve file content respectively, from the target. (CVE-2013-5653, CVE-2016-7977) * It was found that the ghostscript function .setdevice suffered a use-after-free vulnerability due to an incorrect reference count. A specially crafted postscript document could trigger code execution in the context of the gs process. (CVE-2016-7978) * It was found that the ghostscript function .initialize_dsc_parser did not validate its parameter before using it, allowing a type confusion flaw. A specially crafted postscript document could cause a crash code execution in the context of the gs process. (CVE-2016-7979) * It was found that ghostscript did not sufficiently check the validity of parameters given to the .sethalftone5 function. A specially crafted postscript document could cause a crash, or execute arbitrary code in the context of the gs process. (CVE-2016-8602) Note that Tenable Network Security has attempted to extract the preceding description block directly from the corresponding Red Hat security advisory. Virtuozzo provides no description for VZLSA advisories. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 101399 published 2017-07-13 reporter This script is Copyright (C) 2017-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/101399 title Virtuozzo 7 : ghostscript / ghostscript-cups / ghostscript-devel / etc (VZLSA-2017-0013) NASL family Scientific Linux Local Security Checks NASL id SL_20170104_GHOSTSCRIPT_ON_SL7_X.NASL description Security Fix(es) : - It was found that the ghostscript functions getenv, filenameforall and .libfile did not honor the -dSAFER option, usually used when processing untrusted documents, leading to information disclosure. A specially crafted postscript document could read environment variable, list directory and retrieve file content respectively, from the target. (CVE-2013-5653, CVE-2016-7977) - It was found that the ghostscript function .setdevice suffered a use- after-free vulnerability due to an incorrect reference count. A specially crafted postscript document could trigger code execution in the context of the gs process. (CVE-2016-7978) - It was found that the ghostscript function .initialize_dsc_parser did not validate its parameter before using it, allowing a type confusion flaw. A specially crafted postscript document could cause a crash code execution in the context of the gs process. (CVE-2016-7979) - It was found that ghostscript did not sufficiently check the validity of parameters given to the .sethalftone5 function. A specially crafted postscript document could cause a crash, or execute arbitrary code in the context of the gs process. (CVE-2016-8602) last seen 2020-03-18 modified 2017-01-05 plugin id 96302 published 2017-01-05 reporter This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/96302 title Scientific Linux Security Update : ghostscript on SL7.x x86_64 (20170104) NASL family SuSE Local Security Checks NASL id SUSE_SU-2016-2723-1.NASL description This update for ghostscript fixes the following issues : - CVE-2016-8602: Insufficient parameter check in .sethalftone5 (bsc#1004237) 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. last seen 2020-06-01 modified 2020-06-02 plugin id 94607 published 2016-11-07 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/94607 title SUSE SLES11 Security Update : ghostscript-library (SUSE-SU-2016:2723-1) NASL family Fedora Local Security Checks NASL id FEDORA_2016-15D4C05A19.NASL description This update fixes a rare ocasion where ghostscript would fail when displaying *.ps files. More info can be found [here](http://bugs.ghostscript.com/show_bug.cgi?id=697286). ---- This is a security update for these CVEs : - [CVE-2016-8602](https://bugzilla.redhat.com/show_bug.cgi ?id=1383940) - *check for sufficient params in .sethalftone5* - [CVE-2016-7977](https://bugzilla.redhat.com/show_bug.cgi ?id=1380415) - *.libfile does not honor -dSAFER* [This CVE is now correctly fixed, previous release was accidentally missing the fix.] 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. last seen 2020-06-05 modified 2016-11-25 plugin id 95300 published 2016-11-25 reporter This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/95300 title Fedora 23 : ghostscript (2016-15d4c05a19) NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-201702-31.NASL description The remote host is affected by the vulnerability described in GLSA-201702-31 (GPL Ghostscript: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in GPL Ghostscript and the bundled OpenJPEG. Please review the CVE identifiers and GLSA-201612-26 (OpenJPEG) referenced below for additional information. Note: GPL Ghostscript in Gentoo since app-text/ghostscript-gpl-9.20-r1 no longer bundles OpenJPEG. Impact : A context-dependent attacker could entice a user to open a specially crafted PostScript file or PDF using GPL Ghostscript possibly resulting in the execution of arbitrary code with the privileges of the process or a Denial of Service condition. Workaround : There is no known workaround at this time. last seen 2020-06-01 modified 2020-06-02 plugin id 97343 published 2017-02-23 reporter This script is Copyright (C) 2017-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/97343 title GLSA-201702-31 : GPL Ghostscript: Multiple vulnerabilities NASL family Amazon Linux Local Security Checks NASL id ALA_ALAS-2017-784.NASL description It was found that the ghostscript functions getenv, filenameforall and .libfile did not honor the -dSAFER option, usually used when processing untrusted documents, leading to information disclosure. A specially crafted postscript document could read environment variable, list directory and retrieve file content respectively, from the target. (CVE-2013-5653 , CVE-2016-7977) It was found that the ghostscript function .initialize_dsc_parser did not validate its parameter before using it, allowing a type confusion flaw. A specially crafted postscript document could cause a crash code execution in the context of the gs process. (CVE-2016-7979) It was found that ghostscript did not sufficiently check the validity of parameters given to the .sethalftone5 function. A specially crafted postscript document could cause a crash, or execute arbitrary code in the context of the gs process. (CVE-2016-8602) last seen 2020-06-01 modified 2020-06-02 plugin id 96395 published 2017-01-11 reporter This script is Copyright (C) 2017-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/96395 title Amazon Linux AMI : ghostscript (ALAS-2017-784) NASL family OracleVM Local Security Checks NASL id ORACLEVM_OVMSA-2017-0002.NASL description The remote OracleVM system is missing necessary patches to address critical security updates : - Added security fixes for : - CVE-2013-5653 (bug #1380327) - CVE-2016-7977 (bug #1380415) - CVE-2016-7979 (bug #1382305) - CVE-2016-8602 (bug #1383940) last seen 2020-06-01 modified 2020-06-02 plugin id 96300 published 2017-01-05 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/96300 title OracleVM 3.3 / 3.4 : ghostscript (OVMSA-2017-0002) NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2017-0014.NASL description An update for ghostscript is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Moderate. 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 found that the ghostscript functions getenv, filenameforall and .libfile did not honor the -dSAFER option, usually used when processing untrusted documents, leading to information disclosure. A specially crafted postscript document could read environment variable, list directory and retrieve file content respectively, from the target. (CVE-2013-5653, CVE-2016-7977) * It was found that the ghostscript function .initialize_dsc_parser did not validate its parameter before using it, allowing a type confusion flaw. A specially crafted postscript document could cause a crash code execution in the context of the gs process. (CVE-2016-7979) * It was found that ghostscript did not sufficiently check the validity of parameters given to the .sethalftone5 function. A specially crafted postscript document could cause a crash, or execute arbitrary code in the context of the gs process. (CVE-2016-8602) last seen 2020-06-01 modified 2020-06-02 plugin id 96286 published 2017-01-05 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/96286 title CentOS 6 : ghostscript (CESA-2017:0014) NASL family SuSE Local Security Checks NASL id OPENSUSE-2016-1258.NASL description This update for ghostscript fixes the following issues : - CVE-2016-8602: Insufficient parameter check in .sethalftone5 (bsc#1004237). This update was imported from the SUSE:SLE-12:Update update project. last seen 2020-06-05 modified 2016-11-04 plugin id 94528 published 2016-11-04 reporter This script is Copyright (C) 2016-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/94528 title openSUSE Security Update : ghostscript (openSUSE-2016-1258) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2017-0013.NASL description 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 Moderate. 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 found that the ghostscript functions getenv, filenameforall and .libfile did not honor the -dSAFER option, usually used when processing untrusted documents, leading to information disclosure. A specially crafted postscript document could read environment variable, list directory and retrieve file content respectively, from the target. (CVE-2013-5653, CVE-2016-7977) * It was found that the ghostscript function .setdevice suffered a use-after-free vulnerability due to an incorrect reference count. A specially crafted postscript document could trigger code execution in the context of the gs process. (CVE-2016-7978) * It was found that the ghostscript function .initialize_dsc_parser did not validate its parameter before using it, allowing a type confusion flaw. A specially crafted postscript document could cause a crash code execution in the context of the gs process. (CVE-2016-7979) * It was found that ghostscript did not sufficiently check the validity of parameters given to the .sethalftone5 function. A specially crafted postscript document could cause a crash, or execute arbitrary code in the context of the gs process. (CVE-2016-8602) last seen 2020-06-01 modified 2020-06-02 plugin id 96308 published 2017-01-05 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/96308 title RHEL 7 : ghostscript (RHSA-2017:0013) NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2017-0013.NASL description 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 Moderate. 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 found that the ghostscript functions getenv, filenameforall and .libfile did not honor the -dSAFER option, usually used when processing untrusted documents, leading to information disclosure. A specially crafted postscript document could read environment variable, list directory and retrieve file content respectively, from the target. (CVE-2013-5653, CVE-2016-7977) * It was found that the ghostscript function .setdevice suffered a use-after-free vulnerability due to an incorrect reference count. A specially crafted postscript document could trigger code execution in the context of the gs process. (CVE-2016-7978) * It was found that the ghostscript function .initialize_dsc_parser did not validate its parameter before using it, allowing a type confusion flaw. A specially crafted postscript document could cause a crash code execution in the context of the gs process. (CVE-2016-7979) * It was found that ghostscript did not sufficiently check the validity of parameters given to the .sethalftone5 function. A specially crafted postscript document could cause a crash, or execute arbitrary code in the context of the gs process. (CVE-2016-8602) last seen 2020-06-01 modified 2020-06-02 plugin id 96285 published 2017-01-05 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/96285 title CentOS 7 : ghostscript (CESA-2017:0013) NASL family SuSE Local Security Checks NASL id SUSE_SU-2016-2654-1.NASL description This update for ghostscript fixes the following issues : - CVE-2016-8602: Insufficient parameter check in .sethalftone5 (bsc#1004237). 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. last seen 2020-06-01 modified 2020-06-02 plugin id 94322 published 2016-10-27 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/94322 title SUSE SLED12 / SLES12 Security Update : ghostscript (SUSE-SU-2016:2654-1) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2017-0014.NASL description An update for ghostscript is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Moderate. 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 found that the ghostscript functions getenv, filenameforall and .libfile did not honor the -dSAFER option, usually used when processing untrusted documents, leading to information disclosure. A specially crafted postscript document could read environment variable, list directory and retrieve file content respectively, from the target. (CVE-2013-5653, CVE-2016-7977) * It was found that the ghostscript function .initialize_dsc_parser did not validate its parameter before using it, allowing a type confusion flaw. A specially crafted postscript document could cause a crash code execution in the context of the gs process. (CVE-2016-7979) * It was found that ghostscript did not sufficiently check the validity of parameters given to the .sethalftone5 function. A specially crafted postscript document could cause a crash, or execute arbitrary code in the context of the gs process. (CVE-2016-8602) last seen 2020-06-01 modified 2020-06-02 plugin id 96309 published 2017-01-05 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/96309 title RHEL 6 : ghostscript (RHSA-2017:0014)
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References
- http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff%3Bh=f5c7555c303
- http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff%3Bh=f5c7555c303
- http://rhn.redhat.com/errata/RHSA-2017-0013.html
- http://rhn.redhat.com/errata/RHSA-2017-0013.html
- http://rhn.redhat.com/errata/RHSA-2017-0014.html
- http://rhn.redhat.com/errata/RHSA-2017-0014.html
- http://www.debian.org/security/2016/dsa-3691
- http://www.debian.org/security/2016/dsa-3691
- http://www.openwall.com/lists/oss-security/2016/10/11/5
- http://www.openwall.com/lists/oss-security/2016/10/11/5
- http://www.openwall.com/lists/oss-security/2016/10/11/7
- http://www.openwall.com/lists/oss-security/2016/10/11/7
- http://www.securityfocus.com/bid/95311
- http://www.securityfocus.com/bid/95311
- https://bugs.ghostscript.com/show_bug.cgi?id=697203
- https://bugs.ghostscript.com/show_bug.cgi?id=697203
- https://bugzilla.redhat.com/show_bug.cgi?id=1383940
- https://bugzilla.redhat.com/show_bug.cgi?id=1383940
- https://ghostscript.com/doc/9.21/History9.htm
- https://ghostscript.com/doc/9.21/History9.htm
- https://security.gentoo.org/glsa/201702-31
- https://security.gentoo.org/glsa/201702-31