What’s Vulnerable › Vulnerabilities

CVE-2023-6931: Out-of-bounds write in Linux kernel's Performance Events system component

Description

A heap out-of-bounds write vulnerability in the Linux kernel's Performance Events system component can be exploited to achieve local privilege escalation. A perf_event's read_size can overflow, leading to an heap out-of-bounds increment or write in perf_read_group(). We recommend upgrading past commit 382c27f4ed28f803b1f1473ac2d8db0afc795a1b.

Affected products

How to fix

Upgrade to a fixed version: Linux kernel 6.7. Check the vendor advisory for mitigations.

References

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