CVE-2023-3748

Inifinite loop in babld message parsing may cause dos

Published Jul 24, 2023 CVSS 3.1 · 3.5 Low EPSS < 1% KEV · Not listed
Description
A flaw was found in FRRouting when parsing certain babeld unicast hello messages that are intended to be ignored. This issue may allow an attacker to send specially crafted hello messages with the unicast flag set, the interval field set to 0, or any TLV that contains a sub-TLV with the Mandatory flag set to enter an infinite loop and cause a denial of service.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-6322-1 frr security update
EUVD EUVD EUVD-2023-44383 A flaw was found in FRRouting when parsing certain babeld unicast hello messages that are intended to be ignored. This issue may allow an attacker to send specially crafted hello messages with the unicast flag set, the interval field set to 0, or any TLV that contains a sub-TLV with the Mandatory flag set to enter an infinite loop and cause a denial of service.
Ubuntu USN Ubuntu USN USN-6240-1 FRR vulnerability
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
Sep 27, 2024, 1:44 PM
Reserved
Jul 18, 2023, 12:45 PM
Status
Modified
Published
Jul 24, 2023, 4:15 PM
Modified
Jun 17, 2026, 6:14 AM
Severity
Low
Public date
Apr 15, 2023, 12:00 AM