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free5gc Buffer Overflow vulnerability

High severity GitHub Reviewed Published Nov 16, 2023 to the GitHub Advisory Database • Updated Nov 21, 2023

Package

gomod github.com/free5gc/free5gc (Go)

Affected versions

<= 3.3.0

Patched versions

None

Description

Buffer Overflow vulnerability in free5gc 3.3.0 allows attackers to cause a denial of service via crafted PFCP message with malformed PFCP Heartbeat message whose Recovery Time Stamp IE length is mutated to zero.

References

Published by the National Vulnerability Database Nov 15, 2023
Published to the GitHub Advisory Database Nov 16, 2023
Reviewed Nov 16, 2023
Last updated Nov 21, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS score

0.063%
(29th percentile)

Weaknesses

CVE ID

CVE-2023-47345

GHSA ID

GHSA-6944-6pmv-6mp2

Source code

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