HexBrain

Valve · Report #315256

ImageMagick GIF coder vulnerability leading to memory disclosure

Validstatus
mediumseverity
86upvotes
2 Jul 2018disclosed

Summary

Due to CVE-2017-15277, portions of server memory on some steamcommunity web servers could be leaked via image updates. An attacker would not be able to control what memory would be returned, but system information could be obtained.

I was able to arbitrarily disclose server memory on steamcommunity.com due to CVE-2017-15277.

How it was found

The write-up for this report has not been downloaded yet, or the program disclosed it without one. Read it on HackerOne.

This report was disclosed publicly on HackerOne and belongs to its author and the program. See the original