It was found that ghostscript could leak sensitive operators on the operand stack when a pseudo-operator pushes a subroutine. A specially crafted PostScript file could use this flaw to escape the -dSAFER protection in order to, for example, have access to the file system and execute commands.
It was found that ghostscript could leak sensitive operators on the operand stack when a pseudo-operator pushes a subroutine. A specially crafted PostScript file could use this flaw to escape the -dSAFER protection in order to, for example, have access to the file system and execute commands.
https://marc.info/?l=oss-security&m=154825433813390 https://bugs.chromium.org/p/project-zero/issues/detail?id=1729&desc=2 https://bugs.ghostscript.com/show_bug.cgi?id=700317 http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=13b0a36f8181db66a91bcc8cea139998b53a8996 http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=2db98f9c66135601efb103d8db7d020a672308db http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=99f13091a3f309bdc95d275ea9fec10bb9f42d9a http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=59d8f4deef90c1598ff50616519d5576756b4495 http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=2768d1a6dddb83f5c061207a7ed2813999c1b5c9 http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=49c8092da88ef6bb0aa281fe294ae0925a44b5b9
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