Artifex Ghostscript vulnerabilities

CVE-2019-14817 [HIGH] CWE-648 CVE-2019-14817: A flaw was found in, ghostscript versions prior to 9.50, in the .pdfexectoken and other procedures w A flaw was found in, ghostscript versions prior to 9.50, in the .pdfexectoken and other procedures where it did not properly secure its privileged calls, enabling scripts to bypass `-dSAFER` restrictions. A specially crafted PostScript file could disable security protection and then have access to the file system, or execute arbitrary commands.

CVE-2019-14811 [HIGH] CWE-648 CVE-2019-14811: A flaw was found in, ghostscript versions prior to 9.50, in the .pdf_hook_DSC_Creator procedure wher A flaw was found in, ghostscript versions prior to 9.50, in the .pdf_hook_DSC_Creator procedure where it did not properly secure its privileged calls, enabling scripts to bypass `-dSAFER` restrictions. A specially crafted PostScript file could disable security protection and then have access to the file system, or execute arbitrary commands.

CVE-2017-15652 [MEDIUM] CWE-200 CVE-2017-15652: Artifex Ghostscript 9.22 is affected by: Obtain Information. The impact is: obtain sensitive informa Artifex Ghostscript 9.22 is affected by: Obtain Information. The impact is: obtain sensitive information. The component is: affected source code file, affected function, affected executable, affected libga (imagemagick used that). The attack vector is: Someone must open a postscript file though ghostscript. Because of imagemagick also use libga, so

CVE-2019-3839 [HIGH] CWE-648 CVE-2019-3839: It was found that in ghostscript some privileged operators remained accessible from various places a It was found that in ghostscript some privileged operators remained accessible from various places after the CVE-2019-6116 fix. A specially crafted PostScript file could use this flaw in order to, for example, have access to the file system outside of the constrains imposed by -dSAFER. Ghostscript versions before 9.27 are vulnerable.

CVE-2019-3835 [MEDIUM] CWE-648 CVE-2019-3835: It was found that the superexec operator was available in the internal dictionary in ghostscript bef It was found that the superexec operator was available in the internal dictionary in ghostscript before 9.27. A specially crafted PostScript file could use this flaw in order to, for example, have access to the file system outside of the constrains imposed by -dSAFER.

CVE-2019-3838 [MEDIUM] CWE-648 CVE-2019-3838: It was found that the forceput operator could be extracted from the DefineResource method in ghostsc It was found that the forceput operator could be extracted from the DefineResource method in ghostscript before 9.27. A specially crafted PostScript file could use this flaw in order to, for example, have access to the file system outside of the constrains imposed by -dSAFER.

CVE-2019-6116 [HIGH] CVE-2019-6116: In Artifex Ghostscript through 9.26, ephemeral or transient procedures can allow access to system op In Artifex Ghostscript through 9.26, ephemeral or transient procedures can allow access to system operators, leading to remote code execution.

CVE-2018-19478 [MEDIUM] CWE-20 CVE-2018-19478: In Artifex Ghostscript before 9.26, a carefully crafted PDF file can trigger an extremely long runni In Artifex Ghostscript before 9.26, a carefully crafted PDF file can trigger an extremely long running computation when parsing the file.

CVE-2018-19134 [HIGH] CWE-704 CVE-2018-19134: In Artifex Ghostscript through 9.25, the setpattern operator did not properly validate certain types In Artifex Ghostscript through 9.25, the setpattern operator did not properly validate certain types. A specially crafted PostScript document could exploit this to crash Ghostscript or, possibly, execute arbitrary code in the context of the Ghostscript process. This is a type confusion issue because of failure to check whether the Implementation of a

CVE-2018-16863 [HIGH] CVE-2018-16863: It was found that RHSA-2018:2918 did not fully fix CVE-2018-16509. An attacker could possibly exploi It was found that RHSA-2018:2918 did not fully fix CVE-2018-16509. An attacker could possibly exploit another variant of the flaw and bypass the -dSAFER protection to, for example, execute arbitrary shell commands via a specially crafted PostScript document. This only affects ghostscript 9.07 as shipped with Red Hat Enterprise Linux 7.

CVE-2018-19477 [HIGH] CWE-704 CVE-2018-19477: psi/zfjbig2.c in Artifex Ghostscript before 9.26 allows remote attackers to bypass intended access r psi/zfjbig2.c in Artifex Ghostscript before 9.26 allows remote attackers to bypass intended access restrictions because of a JBIG2Decode type confusion.

CVE-2018-19476 [HIGH] CWE-704 CVE-2018-19476: psi/zicc.c in Artifex Ghostscript before 9.26 allows remote attackers to bypass intended access rest psi/zicc.c in Artifex Ghostscript before 9.26 allows remote attackers to bypass intended access restrictions because of a setcolorspace type confusion.

CVE-2018-19475 [HIGH] CVE-2018-19475: psi/zdevice2.c in Artifex Ghostscript before 9.26 allows remote attackers to bypass intended access psi/zdevice2.c in Artifex Ghostscript before 9.26 allows remote attackers to bypass intended access restrictions because available stack space is not checked when the device remains the same.

CVE-2018-19409 [CRITICAL] CVE-2018-19409: An issue was discovered in Artifex Ghostscript before 9.26. LockSafetyParams is not checked correctl An issue was discovered in Artifex Ghostscript before 9.26. LockSafetyParams is not checked correctly if another device is used.

CVE-2018-18284 [HIGH] CVE-2018-18284: Artifex Ghostscript 9.25 and earlier allows attackers to bypass a sandbox protection mechanism via v Artifex Ghostscript 9.25 and earlier allows attackers to bypass a sandbox protection mechanism via vectors involving the 1Policy operator.

CVE-2018-17961 [HIGH] CVE-2018-17961: Artifex Ghostscript 9.25 and earlier allows attackers to bypass a sandbox protection mechanism via v Artifex Ghostscript 9.25 and earlier allows attackers to bypass a sandbox protection mechanism via vectors involving errorhandler setup. NOTE: this issue exists because of an incomplete fix for CVE-2018-17183.

CVE-2018-18073 [MEDIUM] CWE-200 CVE-2018-18073: Artifex Ghostscript allows attackers to bypass a sandbox protection mechanism by leveraging exposure Artifex Ghostscript allows attackers to bypass a sandbox protection mechanism by leveraging exposure of system operators in the saved execution stack in an error object.

CVE-2018-17183 [HIGH] CVE-2018-17183: Artifex Ghostscript before 9.25 allowed a user-writable error exception table, which could be used b Artifex Ghostscript before 9.25 allowed a user-writable error exception table, which could be used by remote attackers able to supply crafted PostScript to potentially overwrite or replace error handlers to inject code.

CVE-2018-16802 [HIGH] CVE-2018-16802: An issue was discovered in Artifex Ghostscript before 9.25. Incorrect "restoration of privilege" che An issue was discovered in Artifex Ghostscript before 9.25. Incorrect "restoration of privilege" checking when running out of stack during exception handling could be 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.

CVE-2018-16585 [HIGH] CVE-2018-16585: An issue was discovered in Artifex Ghostscript before 9.24. The .setdistillerkeys PostScript command An issue was discovered in Artifex Ghostscript before 9.24. The .setdistillerkeys PostScript command is accepted even though it is not intended for use during document processing (e.g., after the startup phase). This leads to memory corruption, allowing remote attackers able to supply crafted PostScript to crash the interpreter or possibly have unspecified ot