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CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0

The mem_get_bits_rectangle function in Artifex Software, Inc. Ghostscript 9.20 allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted PostScript document. La función mem_get_bits_rectangle en Artifex Software, Inc. Ghostscript 9.20 permite a atacantes remotos provocar una denegación de servicio ( referencia puntero NULL) a través de un documento PostScript manipulado. A NULL pointer dereference flaw was found in ghostscript's mem_get_bits_rectangle function. • http://www.debian.org/security/2017/dsa-3838 http://www.ghostscript.com/cgi-bin/findgit.cgi?309eca4e0a31ea70dcc844812691439312dad091 http://www.securityfocus.com/bid/96995 http://www.securitytracker.com/id/1039071 https://access.redhat.com/errata/RHSA-2017:2180 https://bugs.ghostscript.com/show_bug.cgi?id=697676 https://security.gentoo.org/glsa/201708-06 https://access.redhat.com/security/cve/CVE-2017-7207 https://bugzilla.redhat.com/show_bug.cgi?id=1434353 • CWE-476: NULL Pointer Dereference •

CVSS: 8.8EPSS: 3%CPEs: 2EXPL: 0

The PS Interpreter in Ghostscript 9.18 and 9.20 allows remote attackers to execute arbitrary code via crafted userparams. PS Interpreter en Ghostscript 9.18 y 9.20 permite que atacantes remotos ejecuten código arbitrario mediante parámetros de usuario manipulados. • http://git.ghostscript.com/?p=user/chrisl/ghostpdl.git%3Ba=commit%3Bh=6d444c273da5499a4cd72f21cb6d4c9a5256807d http://www.debian.org/security/2016/dsa-3691 http://www.openwall.com/lists/oss-security/2016/10/19/6 http://www.securityfocus.com/bid/95332 https://bugs.ghostscript.com/show_bug.cgi?id=697178 https://security.gentoo.org/glsa/201702-31 • CWE-20: Improper Input Validation •

CVSS: 9.8EPSS: 8%CPEs: 1EXPL: 0

Use-after-free vulnerability in Ghostscript 9.20 might allow remote attackers to execute arbitrary code via vectors related to a reference leak in .setdevice. Vulnerabilidad de uso después de la liberación de Ghostscript 9.20 podría permitir a atacantes remotos ejecutar código arbitrario a través de vectores relacionados con una fuga de referencia en .setdevice. 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. • http://rhn.redhat.com/errata/RHSA-2017-0013.html http://www.debian.org/security/2016/dsa-3691 http://www.openwall.com/lists/oss-security/2016/10/05/15 http://www.securityfocus.com/bid/95336 https://bugs.ghostscript.com/show_bug.cgi?id=697179 https://security.gentoo.org/glsa/201702-31 https://access.redhat.com/security/cve/CVE-2016-7978 https://bugzilla.redhat.com/show_bug.cgi?id=1382300 • CWE-416: Use After Free •

CVSS: 7.8EPSS: 5%CPEs: 1EXPL: 0

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. La función .sethalftone5 en psi/zht2.c en Ghostscript en versiones anteriores a 9.21 permite a los atacantes remotos provocar una denegación de servicio (caída de la aplicación) o posiblemente ejecutar código arbitrario a través de un documento Postscript que llama a .sethalftone5 con una pila de operandos vacía. 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. • 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-2017-0014.html 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/2016/10/11/7 http://www.securityfocus.com/bid/95311 https://bugs.ghostscript.com/show_bug.cgi?id=697203 https://bugzilla.redhat.com/show_bug.cgi&# • CWE-20: Improper Input Validation CWE-704: Incorrect Type Conversion or Cast •

CVSS: 9.8EPSS: 10%CPEs: 1EXPL: 0

Ghostscript before 9.21 might allow remote attackers to bypass the SAFER mode protection mechanism and consequently execute arbitrary code by leveraging type confusion in .initialize_dsc_parser. Ghostscript versiones anteriores a 9.21 podría permitir que los atacantes remotos pasaran por alto el mecanismo de protección del modo SAFER y, en consecuencia, ejecutar código arbitrario mediante el aprovechamiento de la confusión de tipos en .initialize_dsc_parser. 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. • http://git.ghostscript.com/?p=ghostpdl.git%3Bh=875a0095f37626a721c7ff57d606a0f95af03913 http://rhn.redhat.com/errata/RHSA-2017-0013.html http://rhn.redhat.com/errata/RHSA-2017-0014.html http://www.debian.org/security/2016/dsa-3691 http://www.openwall.com/lists/oss-security/2016/10/05/15 http://www.securityfocus.com/bid/95337 https://bugs.ghostscript.com/show_bug.cgi?id=697190 https://security.gentoo.org/glsa/201702-31 https://access.redhat.com/security/cve/CVE-2016-7979 h • CWE-20: Improper Input Validation CWE-704: Incorrect Type Conversion or Cast •