CVE-2023-6238
Last modified
CVE-2023-6238 is a medium-severity vulnerability rated 6.7/10 on the CVSS scale. A buffer overflow vulnerability was found in the NVM Express (NVMe) driver in the Linux kernel. Only privileged user could specify a small meta buffer and let the device perform larger Direct Memory Access (DMA) into the same buffer, overwriting unrelated kernel memory, causing random kernel crashes and memory corruption.. EPSS estimates a 0.29% chance of exploitation in the next 30 days.
Description
A buffer overflow vulnerability was found in the NVM Express (NVMe) driver in the Linux kernel. Only privileged user could specify a small meta buffer and let the device perform larger Direct Memory Access (DMA) into the same buffer, overwriting unrelated kernel memory, causing random kernel crashes and memory corruption.
Metrics
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | All versions |
| Fedoraproject | Fedora | 38 |
References
- https://access.redhat.com/security/cve/CVE-2023-6238Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2250834Issue Tracking, Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2023-6238Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2250834Issue Tracking, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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