An issue was discovered in Artifex Software, Inc. MuJS before 8f62ea10a0af68e56d5c00720523ebcba13c2e6a. The MakeDay function in jsdate.c does not validate the month, leading to an integer overflow when parsing a specially crafted JS file.
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
| Link | Tags |
|---|---|
| http://git.ghostscript.com/?p=mujs.git%3Bh=8f62ea10a0af68e56d5c00720523ebcba13c2e6a | |
| https://bugs.ghostscript.com/show_bug.cgi?id=697496 | issue tracking |
| http://www.securityfocus.com/bid/95855 | third party advisory vdb entry |