Описание
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.
Пакеты
| Пакет | Статус | Версия исправления | Релиз | Тип |
|---|---|---|---|---|
| ghostscript | fixed | 9.28~~rc2~dfsg-1 | package |
Примечания
https://bugs.ghostscript.com/show_bug.cgi?id=701445
https://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=885444fcbe10dc42787ecb76686c8ee4dd33bf33
https://www.openwall.com/lists/oss-security/2019/08/28/2
For recent versions (9.28~~rc1~dfsg-1) the issue is mitigated starting
from https://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=7ecbfda92b4c8dbf6f6c2bf8fc82020a29219eff
which changed the access to file permissions.
Связанные уязвимости
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.
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.
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.
A flaw was found in, ghostscript versions prior to 9.28, 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.
Уязвимость процедуры .pdf_hook_DSC_Creator программы конвертирования файлов формата PostScript Ghostscript, позволяющая нарушителю получить доступ к файловой системе