CVE-2022-2991
Linux Kernel LightNVM Subsystem Heap-based Overflow Privilege Escalation Vulnerability
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
A heap-based buffer overflow was found in the Linux kernel's LightNVM subsystem. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. This vulnerability allows a local attacker to escalate privileges and execute arbitrary code in the context of the kernel. The attacker must first obtain the ability to execute high-privileged code on the target system to exploit this vulnerability.
Se encontró un desbordamiento de búfer en la región heap de la memoria en el subsistema LightNVM del kernel de Linux. El problema es debido a la falta de comprobación apropiada de la longitud de los datos suministrados por el usuario antes de copiarlos en un búfer de longitud fija en la región heap de la memoria. Esta vulnerabilidad permite a un atacante local escalar privilegios y ejecutar código arbitrario en el contexto del kernel. El atacante debe obtener primero la capacidad de ejecutar código con altos privilegios en el sistema objetivo para explotar esta vulnerabilidad.
This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel. An attacker must first obtain the ability to execute high-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within the LightNVM subsystem. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the kernel.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2022-07-11 CVE Published
- 2022-08-25 CVE Reserved
- 2024-08-03 CVE Updated
- 2024-12-17 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-122: Heap-based Buffer Overflow
- CWE-787: Out-of-bounds Write
CAPEC
References (2)
URL | Tag | Source |
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https://www.zerodayinitiative.com/advisories/ZDI-22-960 | Third Party Advisory |
URL | Date | SRC |
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URL | Date | SRC |
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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/drivers/lightnvm/Kconfig?h=v5.10.114&id=549209caabc89f2877ad5f62d11fca5c052e0e8 | 2022-08-30 |
URL | Date | SRC |
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Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
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Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | < 5.15 Search vendor "Linux" for product "Linux Kernel" and version " < 5.15" | - |
Affected
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