CVE-2022-43677 — MEDIUM (5.5)

Vulnerability Description

In free5GC 3.2.1, a malformed NGAP message can crash the AMF and NGAP decoders via an index-out-of-range panic in aper.GetBitString.

CVSS Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Free5Gc	Free5Gc	3.2.1

References

https://github.com/free5gc/free5gc/issues/402ExploitIssue TrackingThird Party Advisory
https://www.trendmicro.com/en_us/research/23/j/asn1-vulnerabilities-in-5g-cores.
https://github.com/free5gc/free5gc/issues/402ExploitIssue TrackingThird Party Advisory
https://www.trendmicro.com/en_us/research/23/j/asn1-vulnerabilities-in-5g-cores.

FAQ

What is CVE-2022-43677?

CVE-2022-43677 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In free5GC 3.2.1, a malformed NGAP message can crash the AMF and NGAP decoders via an index-out-of-range panic in aper.GetBitString.

How severe is CVE-2022-43677?

CVE-2022-43677 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2022-43677?

Check the references section above for vendor advisories and patch information. Affected products include: Free5Gc Free5Gc.