CVE-2024-36953
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-476 · NULL pointer dereference
- Record status
- Analyzed
Affected
- Linux Kernel < 5.10.217
- Linux Kernel < 5.15.159
- Linux Kernel < 6.1.91
- Linux Kernel < 6.6.31
- Linux Kernel < 6.8.10
- Linux Kernel 6.9
- Debian Linux 10.0
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2024-36953.md and follow it. Check whether this project is affected by CVE-2024-36953. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/01981276d64e542c177b243f7c979fee855d5487
- https://git.kernel.org/stable/c/17db92da8be5dd3bf63c01f4109fe47db64fc66f
- https://git.kernel.org/stable/c/3a5b0378ac6776c7c31b18e0f3c1389bd6005e80
- https://git.kernel.org/stable/c/4404465a1bee3607ad90a4c5f9e16dfd75b85728
- https://git.kernel.org/stable/c/6ddb4f372fc63210034b903d96ebbeb3c7195adb
- https://git.kernel.org/stable/c/8d6a1c8e3de36cb0f5e866f1a582b00939e23104
- https://git.kernel.org/stable/c/01981276d64e542c177b243f7c979fee855d5487
- https://git.kernel.org/stable/c/17db92da8be5dd3bf63c01f4109fe47db64fc66f
- https://git.kernel.org/stable/c/3a5b0378ac6776c7c31b18e0f3c1389bd6005e80
- https://git.kernel.org/stable/c/4404465a1bee3607ad90a4c5f9e16dfd75b85728
References
- https://git.kernel.org/stable/c/01981276d64e542c177b243f7c979fee855d5487
- https://git.kernel.org/stable/c/17db92da8be5dd3bf63c01f4109fe47db64fc66f
- https://git.kernel.org/stable/c/3a5b0378ac6776c7c31b18e0f3c1389bd6005e80
- https://git.kernel.org/stable/c/4404465a1bee3607ad90a4c5f9e16dfd75b85728
- https://git.kernel.org/stable/c/6ddb4f372fc63210034b903d96ebbeb3c7195adb
- https://git.kernel.org/stable/c/8d6a1c8e3de36cb0f5e866f1a582b00939e23104
- https://git.kernel.org/stable/c/01981276d64e542c177b243f7c979fee855d5487
- https://git.kernel.org/stable/c/17db92da8be5dd3bf63c01f4109fe47db64fc66f
- https://git.kernel.org/stable/c/3a5b0378ac6776c7c31b18e0f3c1389bd6005e80
- https://git.kernel.org/stable/c/4404465a1bee3607ad90a4c5f9e16dfd75b85728
- https://git.kernel.org/stable/c/6ddb4f372fc63210034b903d96ebbeb3c7195adb
- https://git.kernel.org/stable/c/8d6a1c8e3de36cb0f5e866f1a582b00939e23104
- https://lists.debian.org/debian-lts-announce/2024/06/msg00019.html