VULNERABILITY INTELLIGENCE

CVE-2021-22600

CVSS score6.6 MEDIUM
EPSS probability6.59%
CISA KEVKnown exploited vulnerability
Published2022-01-26
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:H

Known Exploited Vulnerability

Linux Kernel Privilege Escalation Vulnerability

Vendor / product: Linux / Kernel

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

Weakness classification

  • CWE-415: Double Free

Primary references