CVE-2015-3693

Description

Apple Mac EFI before 2015-001, as used in OS X before 10.10.4 and other products, does not properly set refresh rates for DDR3 RAM, which might make it easier for remote attackers to conduct row-hammer attacks, and consequently gain privileges or cause a denial of service (memory corruption), by triggering certain patterns of access to memory locations.

Category

9.3
CVSS
Severity: Critical
CVSS 2.0 •
EPSS 31.14% Top 5%
Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://lists.apple.com/archives/security-announce/2015/Jun/msg00003.html vendor advisory
http://googleprojectzero.blogspot.com/2015/03/exploiting-dram-rowhammer-bug-to-gain.html
http://lists.apple.com/archives/security-announce/2015/Jun/msg00002.html patch vendor advisory
http://www.securitytracker.com/id/1032755 vdb entry
http://support.apple.com/kb/HT204942 vendor advisory
http://www.securityfocus.com/bid/75495 vdb entry
http://www.securitytracker.com/id/1032444 vdb entry
http://support.apple.com/kb/HT204934 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2015-3693?
CVE-2015-3693 has been scored as a critical severity vulnerability.
How to fix CVE-2015-3693?
To fix CVE-2015-3693, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-3693 being actively exploited in the wild?
It is possible that CVE-2015-3693 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~31% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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