CVE-2015-3693

Severity: critical (CVSS 9.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 7.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2015-07-03 · updated 2026-06-17
Weakness: CWE-254

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.

Affected products

macOS: through 10.10.3

References

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

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