CVE-2023-6238
Kernel: nvme: memory corruption via unprivileged user passthrough
Severity Score
6.7
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Track*
*SSVC
Descriptions
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.
Se encontró una vulnerabilidad de desbordamiento del búfer en el controlador NVM Express (NVMe) en el kernel de Linux. Un usuario sin privilegios podría especificar un metabúfer pequeño y permitir que el dispositivo realice un Direct Memory Access (DMA) más grande en el mismo búfer, sobrescribiendo la memoria del kernel no relacionada, provocando fallas aleatorias del kernel y corrupción de la memoria.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Track*
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2023-11-21 CVE Reserved
- 2023-11-21 CVE Published
- 2023-11-29 EPSS Updated
- 2024-10-17 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CAPEC
References (2)
| URL | Tag | Source |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2023-6238 | Third Party Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2250834 | Issue Tracking |
| URL | Date | SRC |
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| URL | Date | SRC |
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| URL | Date | SRC |
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | - | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 38 Search vendor "Fedoraproject" for product "Fedora" and version "38" | - |
Affected
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