CVE-2022-43677 : In free5GC 3.2.1, a malformed NGAP message can crash the AMF and NGAP decoders v

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.

Published 2022-10-24 14:15:53

Updated 2023-12-08 03:15:07

Source MITRE

View at NVD, CVE.org

Products affected by CVE-2022-43677

Free5gc » Free5gc » Version: 3.2.1
cpe:2.3:a:free5gc:free5gc:3.2.1:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.02%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 4 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source	First Seen
5.5	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H	1.8	3.6	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: None Integrity: None Availability: High

https://www.trendmicro.com/en_us/research/23/j/asn1-vulnerabilities-in-5g-cores.html

Attacks on 5G Infrastructure From User Devices: ASN.1 Vulnerabilities in 5G Cores
https://github.com/free5gc/free5gc/issues/402

[Bugs] A crafted malformed NGAP message can crash AMF and NGAP decoder · Issue #402 · free5gc/free5gc · GitHub
Exploit;Issue Tracking;Third Party Advisory

Jump to