CVE-2023-37020

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Source
https://cve.org/CVERecord?id=CVE-2023-37020
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-37020.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2023-37020
Published
2025-01-22T00:00:00Z
Modified
2026-05-08T04:52:16.490752Z
Severity
  • 8.6 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

Open5GS MME versions <= 2.6.4 contain an assertion that can be remotely triggered via a malformed ASN.1 packet over the S1AP interface. An attacker may send a UE Context Release Complete message missing a required MME_UE_S1AP_ID field to repeatedly crash the MME, resulting in denial of service.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/37xxx/CVE-2023-37020.json",
    "cna_assigner": "mitre"
}
References

Affected packages

Git / github.com/open5gs/open5gs

Affected ranges

Type
GIT
Repo
https://github.com/open5gs/open5gs
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
99f7da154e0fc4a494b35d1e74c26d89b934d5bc
Database specific 
{
    "source": "CPE_FIELD",
    "cpe": "cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "2.6.4"
        }
    ]
}

Affected versions

v0.*
v0.1.0
v0.1.1
v0.2.0
v0.3.0
v0.3.1
v0.3.10
v0.3.2
v0.3.3
v0.3.4
v0.3.5
v0.3.6
v0.3.8
v0.4.1
v0.4.2
v0.4.3
v0.4.4
v0.5.0
v0.5.1
v0.5.2
v1.*
v1.0.0
v1.1.0
v1.2.0
v1.2.1
v1.2.2
v1.2.3
v1.2.4
v1.3.0
v2.*
v2.0.0
v2.0.18
v2.0.22
v2.1.0
v2.1.1
v2.1.3
v2.1.4
v2.1.5
v2.1.7
v2.2.0
v2.2.1
v2.2.6
v2.2.7
v2.2.8
v2.2.9
v2.3.0
v2.3.2
v2.3.6
v2.4.0
v2.4.1
v2.4.3
v2.4.4
v2.4.5
v2.4.7
v2.4.8
v2.4.9
v2.6.1
v2.6.2
v2.6.3
v2.6.4

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-37020.json"