CVE-2021-45956

dnsmasq: a heap-based buffer overflow in print_mac

Published Dec 31, 2021 CVSS 3.1 · 9.8 Critical EPSS 2.7% KEV · Not listed
Description
Dnsmasq 2.86 has a heap-based buffer overflow in print_mac (called from log_packet and dhcp_reply). NOTE: the vendor's position is that CVE-2021-45951 through CVE-2021-45957 "do not represent real vulnerabilities, to the best of our knowledge.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Weaknesses CWE-122
Type Values Removed Values Added
Metrics ssvc

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

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Oct 28, 2024, 8:56 PM
Reserved
Dec 31, 2021, 12:00 AM
Status
Modified
Published
Jan 1, 2022, 12:15 AM
Modified
Jun 17, 2026, 4:14 AM
Severity
Public date
Jan 1, 2022, 12:00 AM