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.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| http://openwall.com/lists/oss-security/2018/08/27/4 | patch mailing list third party advisory issue tracking |
| https://security.gentoo.org/glsa/201811-12 | third party advisory vendor advisory |
| https://usn.ubuntu.com/3768-1/ | third party advisory vendor advisory |
| http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=ea735ba37dc0fd5f5622d031830b9a559dec1cc9 | |
| https://usn.ubuntu.com/3773-1/ | third party advisory vendor advisory |
| https://bugs.ghostscript.com/show_bug.cgi?id=699671 | issue tracking permissions required |