Oracle Linux: CVE-2024-36953: ELSA-2024-7000: kernel security update (IMPORTANT) (Multiple Advisories)

Oracle Linux: CVE-2024-36953: ELSA-2024-7000:kernel security update (IMPORTANT) (Multiple Advisories)

Severity

4

CVSS

(AV:L/AC:L/Au:M/C:N/I:N/A:C)

Published

05/30/2024

Created

10/24/2024

Added

10/16/2024

Modified

12/10/2024

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-v2: Check for non-NULL vCPU in vgic_v2_parse_attr() vgic_v2_parse_attr() is responsible for finding the vCPU that matches the user-provided CPUID, which (of course) may not be valid. If the ID is invalid, kvm_get_vcpu_by_id() returns NULL, which isn't handled gracefully. Similar to the GICv3 uaccess flow, check that kvm_get_vcpu_by_id() actually returns something and fail the ioctl if not.

Solution(s)

• oracle-linux-upgrade-kernel

References

• https://attackerkb.com/topics/cve-2024-36953
• CVE - 2024-36953
• ELSA-2024-7000