Vulnerability in Free5gc
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.008 (53.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.008 · change: +0.000
Affected products
- Free5gc — versions 3.2.1
Public proof-of-concept exploits
References
- github.com/free5gc/free5gc/issues/402 (Exploit, Third Party Advisory, Issue Tracking)
- www.trendmicro.com/en_us/research/23/j/asn1-vulnerabilities-in-5g-cores.html
Frequently asked questions
- What is CVE-2022-43677?
- CVE-2022-43677 is a medium-severity vulnerability in Free5gc. CVSS score: 5.5/10. Published 2022-10-24.
- How severe is CVE-2022-43677?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2022-43677 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.