CVE-2021-22600

MEDIUMCISA KEV

6.6

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

CVE Details

CVSS v3.1 Score6.6

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:H

Attack VectorLOCAL

ComplexityHIGH

Privileges RequiredLOW

User InteractionREQUIRED

Published1/26/2022

Last Modified10/24/2025

Sourcekev

Honeypot Sightings0

CISA KEV

VendorLinux

ProductKernel

Vulnerability NameLinux Kernel Privilege Escalation Vulnerability

KEV Date Added2022-04-11

Remediation Due Date2022-05-02

Ransomware UseUnknown

Affected Products

debian:debian_linuxlinux:linux_kernelnetapp:8300netapp:8300_firmwarenetapp:8700netapp:8700_firmwarenetapp:a400netapp:a400_firmwarenetapp:c400netapp:c400_firmwarenetapp:h300snetapp:h300s_firmwarenetapp:h410cnetapp:h410c_firmwarenetapp:h410snetapp:h410s_firmwarenetapp:h500snetapp:h500s_firmwarenetapp:h700snetapp:h700s_firmware

Weaknesses (CWE)

CWE-415CWE-415

References

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=ec6af094ea28f0f2dda1a6a33b14cd57e36a9755(cve-coordination@google.com)

https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html(cve-coordination@google.com)

https://security.netapp.com/advisory/ntap-20230110-0002/(cve-coordination@google.com)

https://www.debian.org/security/2022/dsa-5096(cve-coordination@google.com)

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=ec6af094ea28f0f2dda1a6a33b14cd57e36a9755(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html(af854a3a-2127-422b-91ae-364da2661108)

https://security.netapp.com/advisory/ntap-20230110-0002/(af854a3a-2127-422b-91ae-364da2661108)

https://www.debian.org/security/2022/dsa-5096(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22600(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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