CVE-2024-0564
Linux Kernel KSM Side Channel Memory Disclosure
Description
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.
INFO
Published Date :
Jan. 30, 2024, 3:15 p.m.
Last Modified :
Feb. 8, 2024, 4:36 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
2.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-0564.
| URL | Resource |
|---|---|
| https://access.redhat.com/security/cve/CVE-2024-0564 | Third Party Advisory |
| https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1680513 | Exploit Issue Tracking |
| https://bugzilla.redhat.com/show_bug.cgi?id=2258514 | Issue Tracking |
| https://link.springer.com/conference/wisa | Not Applicable |
| https://wisa.or.kr/accepted | Not Applicable |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-0564 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-0564 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Feb. 08, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://access.redhat.com/security/cve/CVE-2024-0564 No Types Assigned https://access.redhat.com/security/cve/CVE-2024-0564 Third Party Advisory Changed Reference Type https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1680513 No Types Assigned https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1680513 Exploit, Issue Tracking Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2258514 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2258514 Issue Tracking Changed Reference Type https://link.springer.com/conference/wisa No Types Assigned https://link.springer.com/conference/wisa Not Applicable Changed Reference Type https://wisa.or.kr/accepted No Types Assigned https://wisa.or.kr/accepted Not Applicable Added CWE NIST CWE-203 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.4.0-96.119 up to (including) 5.15.0-58 Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Feb. 01, 2024
Action Type Old Value New Value Removed CVSS V3.1 Red Hat, Inc. AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N Added CVSS V3.1 Red Hat, Inc. AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N -
CVE Received by [email protected]
Jan. 30, 2024
Action Type Old Value New Value Added Description 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. Added Reference Red Hat, Inc. https://access.redhat.com/security/cve/CVE-2024-0564 [No types assigned] Added Reference Red Hat, Inc. https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1680513 [No types assigned] Added Reference Red Hat, Inc. https://bugzilla.redhat.com/show_bug.cgi?id=2258514 [No types assigned] Added Reference Red Hat, Inc. https://link.springer.com/conference/wisa [No types assigned] Added Reference Red Hat, Inc. https://wisa.or.kr/accepted [No types assigned] Added CVSS V3.1 Red Hat, Inc. AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-0564 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-0564
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.05 }} 0.01%
score
0.17788
percentile