Third-party releases ‘nano-patch’ for Microsoft zero day bug
The delay in last month's Patch Tuesday fixes has caused considerable angst given there were several known problems, including two disclosed by Google.Microsoft is on track, as far as we know, for a patch release next week, but one company isn't waiting. It has issued its own fix for a minor bug.A U.K. security company called ACROS Security has released what they call their first "nano-patch" for CVE-2017-0038, a bug in EMF image format parsing logic that does not adequately check image dimensions specified in the image file being parsed against the amount of pixels in the file.If image dimensions are large enough, the parser is tricked into reading memory contents beyond the memory-mapped EMF file being parsed. An attacker could use this vulnerability to steal sensitive data in memory or as an aid in other exploits when ASLR needs to be defeated.To read this article in full or to leave a comment, please click here