CVE-2022-2991

kernel: heap-based overflow in LightNVM Subsystem may lead to privilege escalation

Published Aug 25, 2022 CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed
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.

Analysis

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Remediation

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Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2022-35209 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.
Ubuntu USN Ubuntu USN USN-6001-1 Linux kernel (AWS) vulnerabilities
Ubuntu USN Ubuntu USN USN-6013-1 Linux kernel (AWS) vulnerabilities
Ubuntu USN Ubuntu USN USN-6014-1 Linux kernel vulnerabilities
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Aug 3, 2024, 12:53 AM
Reserved
Aug 25, 2022, 12:00 AM
Status
Modified
Published
Aug 25, 2022, 6:15 PM
Modified
Jun 17, 2026, 4:42 AM
Severity
Important
Public date
Jul 11, 2022, 12:00 AM