What is CVE-2024-0564?

CVE-2024-0564 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.5 out of 10. CVE-2024-0564 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-0564?

CVE-2024-0564 has a CVSS score of 6.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Is there a patch available for CVE-2024-0564?

No patch is currently available for CVE-2024-0564. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2024-0564 actively exploited?

CVE-2024-0564 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2024-0564

Medium

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.

Package Linux Kernel

Published 2024-01-30

Last modified 2024-11-25

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

6.5

out of 10

Medium

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Vector string

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness type

CWE-203

CVE-2024-0564 is classified as CWE-203

See CWE-203 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2024-0564 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Red Hat
https://access.redhat.com/security/cve/CVE-2024-0564

Third Party Advisory
Bugs
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1680513

Exploit Issue Tracking
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=2258514

Issue Tracking
Link
https://link.springer.com/conference/wisa

Not Applicable
Wisa
https://wisa.or.kr/accepted

Not Applicable

Details

CVE ID CVE-2024-0564

Severity Medium

CVSS score 6.5 / 10

CVSS version 3.1

Published 2024-01-30

Modified 2024-11-25

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2024-0564?

CVE-2024-0564 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.5 out of 10 . CVE-2024-0564 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-0564?

CVE-2024-0564 has a CVSS score of 6.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Is there a patch available for CVE-2024-0564?

No patch is currently available for CVE-2024-0564. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2024-0564 actively exploited?

No — CVE-2024-0564 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.