CVE-2021-43612

lldpd: out-of-bounds read when decoding SONMP packets

Published Apr 15, 2023 CVSS 3.1 · 7.5 High EPSS 1.1% KEV · Not listed
Description
In lldpd before 1.0.13, when decoding SONMP packets in the sonmp_decode function, it's possible to trigger an out-of-bounds heap read via short SONMP packets.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-3388-1 lldpd security update
Debian DLA Debian DLA DLA-3389-1 lldpd security update
EUVD EUVD EUVD-2021-30526 In lldpd before 1.0.13, when decoding SONMP packets in the sonmp_decode function, it's possible to trigger an out-of-bounds heap read via short SONMP packets.
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Redhat
Redhat enterprise Linux
CPEs cpe:/a:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Feb 13, 2025, 4:28 PM
Reserved
Nov 12, 2021, 12:00 AM
Status
Modified
Published
Apr 15, 2023, 10:15 PM
Modified
Jun 17, 2026, 4:11 AM
Severity
Moderate
Public date
Nov 18, 2021, 12:00 AM