What is CVE-2023-3748?

CVE-2023-3748 is a low-severity vulnerability in Frrouting, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 3.5/10. Published 2023-07-24.

How severe is CVE-2023-3748?

Low severity. CVSS v3 base score is 3.5 out of 10.

Vulnerability in Frrouting

CVE-2023-3748

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.

EPSS: 0.008 (52.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

Affected products

Weakness classification (CWE)

CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)

References

secalert@redhat.com (x_refsource_REDHAT, Third Party Advisory, vdb-entry)
secalert@redhat.com (x_refsource_REDHAT, issue-tracking, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2023-3748?: CVE-2023-3748 is a low-severity vulnerability in Frrouting, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 3.5/10. Published 2023-07-24.
How severe is CVE-2023-3748?: Low severity. CVSS v3 base score is 3.5 out of 10.