CVE-2021-3655

kernel: missing size validations on inbound SCTP packets

Published Aug 5, 2021 CVSS 3.1 · 3.3 Low EPSS < 1% KEV · Not listed
Description
A vulnerability was found in the Linux kernel in versions prior to v5.14-rc1. Missing size validations on inbound SCTP packets may allow the kernel to read uninitialized memory.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Debian DLA Debian DLA DLA-2785-1 linux-4.19 security update
Debian DLA Debian DLA DLA-2843-1 linux security update
EUVD EUVD EUVD-2021-26950 A vulnerability was found in the Linux kernel in versions prior to v5.14-rc1. Missing size validations on inbound SCTP packets may allow the kernel to read uninitialized memory.
Ubuntu USN Ubuntu USN USN-5136-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5139-1 Linux kernel (OEM 5.10) vulnerabilities
Ubuntu USN Ubuntu USN USN-5161-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5162-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5163-1 Linux kernel vulnerabilities
History
Type Values Removed Values Added
Metrics ssvc

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

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Oct 8, 2026, 9:03 PM
Reserved
Jul 20, 2021, 12:00 AM
Status
Modified
Published
Aug 5, 2021, 9:15 PM
Modified
Oct 8, 2026, 9:17 PM
Severity
Moderate
Public date
Jun 28, 2021, 12:00 AM