fkie_cve-2024-0564
Vulnerability from fkie_nvd
Published
2024-01-30 15:15
Modified
2024-11-25 09:15
Severity ?
5.3 (Medium) - CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
6.5 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
A flaw was found in the Linux kernel's memory deduplication mechanism. The max page sharing of Kernel Samepage Merging (KSM), added in Linux kernel version 4.4.0-96.119, can create a side channel. When the attacker and the victim share the same host and the default setting of KSM is "max page sharing=256", it is possible for the attacker to time the unmap to merge with the victim's page. The unmapping time depends on whether it merges with the victim's page and additional physical pages are created beyond the KSM's "max page share". Through these operations, the attacker can leak the victim's page.
References
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2024-0564Third Party Advisory
secalert@redhat.comhttps://bugs.launchpad.net/ubuntu/+source/linux/+bug/1680513Exploit, Issue Tracking
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2258514Issue Tracking
secalert@redhat.comhttps://link.springer.com/conference/wisaNot Applicable
secalert@redhat.comhttps://wisa.or.kr/acceptedNot Applicable
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2024-0564Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1680513Exploit, Issue Tracking
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2258514Issue Tracking
af854a3a-2127-422b-91ae-364da2661108https://link.springer.com/conference/wisaNot Applicable
af854a3a-2127-422b-91ae-364da2661108https://wisa.or.kr/acceptedNot Applicable
Impacted products
Vendor Product Version
linux linux_kernel *
redhat enterprise_linux 8.0
redhat enterprise_linux 9.0


To clipboard 

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  "lastModified": "2024-11-25T09:15:05.700",
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}


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