Описание
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
Ссылки
- Technical DescriptionThird Party Advisory
- Third Party AdvisoryUS Government Resource
- Third Party AdvisoryVDB Entry
- Issue TrackingThird Party Advisory
- Third Party AdvisoryUS Government Resource
- Third Party AdvisoryUS Government Resource
- Technical DescriptionThird Party Advisory
- Technical DescriptionThird Party Advisory
- Third Party AdvisoryUS Government Resource
- Third Party AdvisoryVDB Entry
- Issue TrackingThird Party Advisory
- Third Party AdvisoryUS Government Resource
- Third Party AdvisoryUS Government Resource
- Technical DescriptionThird Party Advisory
Уязвимые конфигурации
Одно из
EPSS
3.3 Low
CVSS3
2.1 Low
CVSS2
Дефекты
Связанные уязвимости
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
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
Kernel Samepage Merging (KSM) in the Linux kernel 2.6.32 through 4.x d ...
** 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.
Уязвимость компонента Kernel Samepage Merging (KSM) операционной системы Linux, позволяющая нарушителю оказать влияние на конфиденциальность информации
EPSS
3.3 Low
CVSS3
2.1 Low
CVSS2