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CVE-2024-0646

HIGHCVSS 7.8/10EPSS 0.31%

Last modified

CVE-2024-0646 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. An out-of-bounds memory write flaw was found in the Linux kernel’s Transport Layer Security functionality in how a user calls a function splice with a ktls socket as the destination. This flaw allows a local user to crash or potentially escalate their privileges on the system.. EPSS estimates a 0.31% chance of exploitation in the next 30 days.

Description

An out-of-bounds memory write flaw was found in the Linux kernel’s Transport Layer Security functionality in how a user calls a function splice with a ktls socket as the destination. This flaw allows a local user to crash or potentially escalate their privileges on the system.

Metrics

CVSS 3.1
7.8/10

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

EPSS Probability
0.31%

23.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
LinuxLinux Kernel>= 4.20, < 5.4.267—
LinuxLinux Kernel>= 5.5, < 5.10.208—
LinuxLinux Kernel>= 5.11, < 5.15.147—
LinuxLinux Kernel>= 5.16, < 6.1.69—
LinuxLinux Kernel>= 6.2, < 6.6.7—
LinuxLinux Kernel6.7Rc1
RedhatEnterprise Linux8.0—
RedhatEnterprise Linux9.0—

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2024-0646?
An out-of-bounds memory write flaw was found in the Linux kernel’s Transport Layer Security functionality in how a user calls a function splice with a ktls socket as the destination. This flaw allows a local user to crash or potentially escalate their privileges on the system.
How severe is CVE-2024-0646?
CVE-2024-0646 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.31% probability of exploitation in the next 30 days.
How do I fix CVE-2024-0646?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST