Medium severity · published Oct 24, 2022
CVE-2022-43677
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
5.5
CVSS
0.8%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 56% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FR
Free5gc · Free5gc
3.2.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-43677
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-43677
Exploit
https://github.com/free5gc/free5gc/issues/402
www.trendmicro.com
https://www.trendmicro.com/en_us/research/23/j/asn1-vulnerabilities-in-5g-cores.html
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