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  

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