Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.15 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/drivers/Mailing ListPatchVendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-22-960/Third Party AdvisoryVDB Entry
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/drivers/Mailing ListPatchVendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-22-960/Third Party AdvisoryVDB Entry
FAQ
What is CVE-2022-2991?
CVE-2022-2991 is a vulnerability with a CVSS score of 6.7 (MEDIUM). 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...
How severe is CVE-2022-2991?
CVE-2022-2991 has been rated MEDIUM with a CVSS base score of 6.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-2991?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.