CVE-2021-22600

HighCVSS 7.0/10Known exploited (CISA KEV)Last modified Jun 17, 2026

Description

A double free bug in packet_set_ring() in net/packet/af_packet.c can be exploited by a local user through crafted syscalls to escalate privileges or deny service. We recommend upgrading kernel past the effected versions or rebuilding past ec6af094ea28f0f2dda1a6a33b14cd57e36a9755

Metrics

CVSS 3.1 7.0/10CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-415

Affected software

No affected versions have been published.

Timeline

Published: Jan 26, 2022
Last modified: Jun 17, 2026
Added to CISA KEV: Apr 11, 2022
NVD status: Analyzed

Related CVEs from 2021

CVE-2021-22618.1Vulnerability in the Oracle Lease and Finance Management product of Oracle E-Business Suite (component: Quotes). Supported versions that are CVE-2021-22628.1Vulnerability in the Oracle Purchasing product of Oracle E-Business Suite (component: Endeca). The supported version that is affected is 12.CVE-2021-22638.1Vulnerability in the Oracle Sourcing product of Oracle E-Business Suite (component: Intelligence, RFx). Supported versions that are affected CVE-2021-226367.8Texas Instruments TI-RTOS, when configured to use HeapMem heap(default), malloc returns a valid pointer to a small buffer on extremely large CVE-2021-226377.8Multiple stack-based buffer overflow issues have been identified in the way the application processes project files, allowing an attacker to CVE-2021-226387.8Fatek FvDesigner Version 1.5.76 and prior is vulnerable to an out-of-bounds read while processing project files, allowing an attacker to cra CVE-2021-226397.8An uninitialized pointer issue has been identified in the way the application processes project files, allowing an attacker to craft a speci CVE-2021-22648.4Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). The supported version that is affected is Prio CVE-2021-226409.8An attacker can decrypt the Ovarro TBox login password by communication capture and brute force attacks.CVE-2021-226417.8A heap-based buffer overflow issue has been identified in the way the application processes project files, allowing an attacker to craft a s CVE-2021-226427.5An attacker could use specially crafted invalid Modbus frames to crash the Ovarro TBox system.CVE-2021-226437.8Luxion KeyShot versions prior to 10.1, Luxion KeyShot Viewer versions prior to 10.1, Luxion KeyShot Network Rendering versions prior to 10.1