CVE-2023-3748
7.5
HIGH
CVSS 3.1
EPSS 0.66%
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.
How to fix CVE-2023-3748
To remediate CVE-2023-3748, upgrade the affected package to a fixed version below.
- —upgrade to 8.4.4-1.1~deb12u2 or later
Is CVE-2023-3748 being exploited?
Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 8.4.4-1.1~deb12u2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |