CVE-2022-3977

kernel: use-after-free bug in mctp_sk_unhash in net/mctp/af_mctp.c

Published Jan 12, 2023 CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Description
A use-after-free flaw was found in the Linux kernel MCTP (Management Component Transport Protocol) functionality. This issue occurs when a user simultaneously calls DROPTAG ioctl and socket close happens, which could allow a local user to crash the system or potentially escalate their privileges on the system.

Analysis

No analysis available yet

Remediation

No remediation available yet

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2022-43307 A use-after-free flaw was found in the Linux kernel MCTP (Management Component Transport Protocol) functionality. This issue occurs when a user simultaneously calls DROPTAG ioctl and socket close happens, which could allow a local user to crash the system or potentially escalate their privileges on the system.
Ubuntu USN Ubuntu USN USN-5793-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5793-2 Linux kernel (Azure) vulnerabilities
Ubuntu USN Ubuntu USN USN-5793-3 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5793-4 Linux kernel (IBM) vulnerabilities
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Apr 8, 2025, 6:03 PM
Reserved
Nov 13, 2022, 12:00 AM
Status
Modified
Published
Jan 12, 2023, 7:15 PM
Modified
Jun 17, 2026, 5:00 AM
Severity
Moderate
Public date
Oct 23, 2022, 9:00 AM