Vulnerability Details : CVE-2024-36953
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.
Products affected by CVE-2024-36953
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Exploit prediction scoring system (EPSS) score for CVE-2024-36953
0.09%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 27 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2024-36953
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.4
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |
0.8
|
3.6
|
134c704f-9b21-4f2e-91b3-4a467353bcc0 | 2024-11-04 |
References for CVE-2024-36953
-
https://git.kernel.org/stable/c/17db92da8be5dd3bf63c01f4109fe47db64fc66f
KVM: arm64: vgic-v2: Check for non-NULL vCPU in vgic_v2_parse_attr() - kernel/git/stable/linux.git - Linux kernel stable tree
-
https://git.kernel.org/stable/c/4404465a1bee3607ad90a4c5f9e16dfd75b85728
KVM: arm64: vgic-v2: Check for non-NULL vCPU in vgic_v2_parse_attr() - kernel/git/stable/linux.git - Linux kernel stable tree
-
https://git.kernel.org/stable/c/01981276d64e542c177b243f7c979fee855d5487
KVM: arm64: vgic-v2: Check for non-NULL vCPU in vgic_v2_parse_attr() - kernel/git/stable/linux.git - Linux kernel stable tree
-
https://git.kernel.org/stable/c/8d6a1c8e3de36cb0f5e866f1a582b00939e23104
KVM: arm64: vgic-v2: Check for non-NULL vCPU in vgic_v2_parse_attr() - kernel/git/stable/linux.git - Linux kernel stable tree
-
https://git.kernel.org/stable/c/3a5b0378ac6776c7c31b18e0f3c1389bd6005e80
KVM: arm64: vgic-v2: Check for non-NULL vCPU in vgic_v2_parse_attr() - kernel/git/stable/linux.git - Linux kernel stable tree
-
https://lists.debian.org/debian-lts-announce/2024/06/msg00019.html
[SECURITY] [DLA 3843-1] linux-5.10 security update
-
https://git.kernel.org/stable/c/6ddb4f372fc63210034b903d96ebbeb3c7195adb
KVM: arm64: vgic-v2: Check for non-NULL vCPU in vgic_v2_parse_attr() - kernel/git/stable/linux.git - Linux kernel stable tree
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