CVSS: 7.8EPSS: 0%CPEs: 5EXPL: 0CVE-2018-16510 – Ubuntu Ghostscript Failed Fix
https://notcve.org/view.php?id=CVE-2018-16510
An issue was discovered in Artifex Ghostscript before 9.24. Incorrect exec stack handling in the "CS" and "SC" PDF primitives could be used by remote attackers able to supply crafted PDFs to crash the interpreter or possibly have unspecified other impact. Se ha descubierto un problema en versiones anteriores a la 9.24 de Artifex Ghostscript. El manejo incorrecto de la pila de ejecución en las primitivas PDF "CS" y "SC" podría ser empleado por atacantes remotos que puedan proporcionar PDF manipulados para provocar el cierre inesperado del intérprete o, posiblemente, otro tipo de impacto sin especificar. The fix Ubuntu applied to address the Ghostscript vulnerability identified in CVE-2018-16510 appears to be insufficient. • http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=ea735ba37dc0fd5f5622d031830b9a559dec1cc9 http://openwall.com/lists/oss-security/2018/08/27/4 https://bugs.ghostscript.com/show_bug.cgi?id=699671 https://security.gentoo.org/glsa/201811-12 https://usn.ubuntu.com/3768-1 https://usn.ubuntu.com/3773-1 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 9.3EPSS: 97%CPEs: 14EXPL: 5CVE-2018-16509 – Ghostscript - Failed Restore Command Execution
https://notcve.org/view.php?id=CVE-2018-16509
An issue was discovered in Artifex Ghostscript before 9.24. Incorrect "restoration of privilege" checking during handling of /invalidaccess exceptions could be used by attackers able to supply crafted PostScript to execute code using the "pipe" instruction. Se ha descubierto un problema en versiones anteriores a la 9.24 de Artifex Ghostscript. La comprobación incorrecta de "restoration of privilege" durante el manejo de excepciones /invalidaccess podría ser empleada por atacantes que sean capaces de proporcionar PostScript manipulado para ejecutar código mediante la instrucción "pipe". It was discovered that the ghostscript /invalidaccess checks fail under certain conditions. • https://www.exploit-db.com/exploits/45369 https://github.com/farisv/PIL-RCE-Ghostscript-CVE-2018-16509 https://github.com/knqyf263/CVE-2018-16509 https://github.com/rhpco/CVE-2018-16509 http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=5516c614dc33662a2afdc377159f70218e67bde5 http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=78911a01b67d590b4a91afac2e8417360b934156 http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=79cccf641486a6595c43f1de1cd7ade696020a31 http://git.ghostscript.com/?p=gho •
CVSS: 7.8EPSS: 0%CPEs: 16EXPL: 0CVE-2018-15911 – ghostscript: Uninitialized memory access in the aesdecode operator (699665)
https://notcve.org/view.php?id=CVE-2018-15911
In Artifex Ghostscript 9.23 before 2018-08-24, attackers able to supply crafted PostScript could use uninitialized memory access in the aesdecode operator to crash the interpreter or potentially execute code. En Artifex Ghostscript 9.23 antes del 24/08/2018, los atacantes que puedan proporcionar archivos PostScript manipulados podrían emplear un acceso a la memoria no inicializada en el operador aesdecode para provocar el cierre inesperado del intérprete o ejecutar código. It was discovered that ghostscript did not properly verify the key used in aesdecode. 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. • http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=8e9ce5016db968b40e4ec255a3005f2786cce45f http://www.securityfocus.com/bid/105122 https://access.redhat.com/errata/RHSA-2018:3834 https://bugs.ghostscript.com/show_bug.cgi?id=699665 https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44101 https://lists.debian.org/debian-lts-announce/2018/09/msg00015.html https://security.gentoo.org/glsa/201811-12 https://support.f5.com/csp/article/K22141757?utm_source=f5support&%3Butm_medium= • CWE-456: Missing Initialization of a Variable CWE-908: Use of Uninitialized Resource •
CVSS: 7.8EPSS: 0%CPEs: 15EXPL: 0CVE-2018-15909 – ghostscript: shading_param incomplete type checking (699660)
https://notcve.org/view.php?id=CVE-2018-15909
In Artifex Ghostscript 9.23 before 2018-08-24, a type confusion using the .shfill operator could be used by attackers able to supply crafted PostScript files to crash the interpreter or potentially execute code. En Artifex Ghostscript 9.23 antes del 24/08/2018, los atacantes podrían emplear una confusión de tipos usando el operador .shfill para proporcionar archivos PostScript manipulados para provocar el cierre inesperado del intérprete o ejecutar código. It was discovered that the ghostscript .shfill operator did not properly validate certain types. 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. • http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=0b6cd1918e1ec4ffd087400a754a845180a4522b http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=e01e77a36cbb2e0277bc3a63852244bec41be0f6 http://www.securityfocus.com/bid/105178 https://access.redhat.com/errata/RHSA-2018:3650 https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44101 https://lists.debian.org/debian-lts-announce/2018/09/msg00015.html https://security.gentoo.org/glsa/201811-12 https://support.f5.com/csp/article/K24803507?utm • CWE-704: Incorrect Type Conversion or Cast CWE-843: Access of Resource Using Incompatible Type ('Type Confusion') •
CVSS: 7.8EPSS: 0%CPEs: 11EXPL: 0CVE-2018-15908 – ghostscript: .tempfile file permission issues (699657)
https://notcve.org/view.php?id=CVE-2018-15908
In Artifex Ghostscript 9.23 before 2018-08-23, attackers are able to supply malicious PostScript files to bypass .tempfile restrictions and write files. En Artifex Ghostscript 9.23 antes del 23/08/2018, los atacantes pueden proporcionar archivos PostScript maliciosos para omitir las restricciones .tempfile y escribir en archivos. It was discovered that the ghostscript .tempfile function did not properly handle file permissions. An attacker could possibly exploit this to exploit this to bypass the -dSAFER protection and delete files or disclose their content via a specially crafted PostScript document. • http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=0d3901189f245232f0161addf215d7268c4d05a3 https://access.redhat.com/errata/RHSA-2018:3650 https://lists.debian.org/debian-lts-announce/2018/09/msg00015.html https://security.gentoo.org/glsa/201811-12 https://usn.ubuntu.com/3768-1 https://www.debian.org/security/2018/dsa-4288 https://www.kb.cert.org/vuls/id/332928 https://access.redhat.com/security/cve/CVE-2018-15908 https://bugzilla.redhat.com/show_bug.cgi?id=1619756 •