Vulnerability Database

299,038

Total vulnerabilities in the database

CVE-2015-2877

Kernel Samepage Merging (KSM) in the Linux kernel 2.6.32 through 4.x does not prevent use of a write-timing side channel, which allows guest OS users to defeat the ASLR protection mechanism on other guest OS instances via a Cross-VM ASL INtrospection (CAIN) attack. NOTE: the vendor states "Basically if you care about this attack vector, disable deduplication." Share-until-written approaches for memory conservation among mutually untrusting tenants are inherently detectable for information disclosure, and can be classified as potentially misunderstood behaviors rather than vulnerabilities

  • Published: Mar 3, 2017
  • Updated: Nov 8, 2023
  • CVE: CVE-2015-2877
  • Severity: Low
  • Exploit:

CVSS v3:

  • Severity: Low
  • Score: 3.3
  • AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS v2:

  • Severity: Low
  • Score: 2.1
  • AV:L/AC:L/Au:N/C:P/I:N/A:N

CWEs: