8.8
Advisory Published

ZDI-CAN-13661: Linux Kernel eBPF Improper Input Validation Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of eBPF programs. The issue results from the lack of proper validation of user-supplied eBPF programs prior to executing them. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the kernel.

Affected SoftwareAffected VersionHow to fix
Red Hat Kernel-devel

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Frequently Asked Questions

  • What is the severity of ZDI-CAN-13661?

    The severity of ZDI-CAN-13661 has been classified as high due to its potential to allow privilege escalation.

  • How do I fix ZDI-CAN-13661?

    To fix ZDI-CAN-13661, update to the latest version of the Linux Kernel where this vulnerability has been patched.

  • Who is affected by ZDI-CAN-13661?

    ZDI-CAN-13661 affects installations of the Linux Kernel that are running vulnerable versions.

  • What type of vulnerability is ZDI-CAN-13661?

    ZDI-CAN-13661 is a local privilege escalation vulnerability.

  • Can ZDI-CAN-13661 be exploited remotely?

    No, ZDI-CAN-13661 requires an attacker to have local access to the system to exploit the vulnerability.

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