NVD
- Id
- 83659
- Name
- CVE-2015-2877
- Description
- ** DISPUTED ** 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.
- Reject
- CVSS Version
- 2
- CVSS Score
- 2.1
- Severity
- Low
- CVSS Base Score
- 2.1
- CVSS Impact Subscore
- 2.9
- CVSS Exploit Subscore
- 3.9
- CVSS Vector
- (AV:L/AC:L/Au:N/C:P/I:N/A:N)
- Pub Date
- 2017-03-18
- Published
- 2017-03-03
- Modified Date
- 2017-03-16
- Seq
- 2015-2877