Kernel: ebpf: insufficient stack type checks in dynptr

8.2 CVSS

Vulnerability Description

An improper input validation flaw was found in the eBPF subsystem in the Linux kernel. The issue occurs due to a lack of proper validation of dynamic pointers within user-supplied eBPF programs prior to executing them. This may allow an attacker with CAP_BPF privileges to escalate privileges and execute arbitrary code in the context of the kernel.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Red Hat would like to thank Zero Day Initiative (ZDI) for reporting this issue.

References

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Affected Vendor

Red Hat

View all reports →

Affected Software

Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.2 Extended Update Support, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8

Vulnerable Versions:

0:5.14.0-362.8.1.el9_3, 0:5.14.0-284.48.1.el9_2, 0:5.14.0-284.48.1.rt14.333.el9_2