Security researchers have find out ways to hijack Intel-compatible PCs running Linux by exploiting physical weaknesses in certain varieties of DDR DRAM chips. The technique, dubbed “rowhammer”, was outlined in a blog post published Monday by Google’s Project Zero security initiative, a team of top security researchers dedicatedly identifies severe zero-day vulnerabilities in different software. Rowhammer is a problem with recent generation. repeatedly accessing a row of memory can cause “bit flipping” in an adjacent row which could allow anyone to change the value of contents stored in computer memory.
Source: https://thehackernews.com/2015/03/dram-rowhammer-vulnerability.html