Source: gnu · Limited verification•Last verified: •Collection Degraded
CVE-2022-23219Unknown / EvaluatingCRITICAL (raw)CVSS 9.8CWE-120
The deprecated compatibility function clnt_create in the sunrpc module of the GNU C Library (aka glibc) through 2.34 copies its hostname argument on the stack without validating its length, which may result in a buffer overflow, potentially resulting in a denial of service or (if an application is not built with a stack protector enabled) arbitrary code execution.
Published: 14 Jan 2022•Last updated: 14 Oct 2026, 09:47 PM IST•Source identifier: cve@mitre.org
Dossier completeness: source-provided sections 2 / 3 · rule guidance available. Missing source facts count as incomplete.
CISA KEV catalog
Unknown
KEV status was not determined.
CVSS score
9.8CRITICAL (raw)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Metric sourcenvd@nist.gov
EPSS probability
4.7%0.047
Percentile92nd
Weakness type
CWE-120
No further CWE recorded
Remediation
Patch status unknown
No fixed version or KB recorded
Why It Matters
Analysis dossierWhy It Matters
The deprecated compatibility function clnt_create in the sunrpc module of the GNU C Library (aka glibc) through 2.34 copies its hostname argument on the stack without validating its length, which may result in a buffer overflow, potentially resulting in a denial of service or (if an application is not built with a stack protector enabled) arbitrary code execution.
SOC priority
High Severity / Review
Actively exploited
Unknown
Publicly disclosed
Unknown
Risk basis: Microsoft or Microsoft-managed product relevance; CRITICAL severity; Critical CVSS without confirmed KEV exploitation
Affected Products & Remediation
8 source-backed productsAffected products and versions (source)
- gnu glibc · < 2.31 · NVD CPE · Source
- oracle communications cloud native core binding support function · 22.1.3 · NVD CPE · Source
- oracle communications cloud native core network function cloud native environment · 22.1.0 · NVD CPE · Source
- oracle communications cloud native core network repository function · 22.1.2; 22.2.0 · NVD CPE · Source
- oracle communications cloud native core security edge protection proxy · 22.1.1 · NVD CPE · Source
- oracle communications cloud native core unified data repository · 22.2.0 · NVD CPE · Source
- oracle enterprise operations monitor · 4.3; 4.4; 5.0 · NVD CPE · Source
- debian debian linux · 10.0 · NVD CPE · Source
Recorded patch / KBNot provided by source
Vendor or catalog guidance (source)
Not provided by source
Known exploitation (source facts)
Only what a source states. Unknown means no source has said either way; it is not "not exploited".
- CISA KEV
- Unknown
- Exploited (source statement)
- Unknown
- Publicly disclosed (source)
- Unknown
Suggested hunting (rule-based inference)
SecOps Signal recommendation (rule-based inference). These steps are hunting hypotheses from the vulnerability class; they do not state or imply that exploitation occurred here or anywhere.
Matched network-unauthenticated (CVSS AV:N, CVSS PR:N, CVSS UI:N)
Exposure
- Identify devices reporting this CVE and note which expose the affected service to untrusted networks.Telemetry: DeviceTvmSoftwareVulnerabilities · A network-reachable, no-privilege vector makes internet-facing instances the first exposure question. · Rule network-unauthenticated
Exploitation evidence
- Review inbound connections to the affected service from unexpected sources since the advisory date.Telemetry: DeviceNetworkEvents · Hunting hypothesis from the CVSS vector; it does not show that exploitation occurred. · Rule network-unauthenticated
Response
- Confirm the source-stated update is installed and the CVE is no longer reported.Telemetry: DeviceTvmSoftwareVulnerabilities · A follow-up inventory check verifies remediation. · Rule network-unauthenticated
CISA KEV Record
CISA KEV status was not determined for this record.
Change History & Source Data
— No recorded material change
- CNA / source
- cve@mitre.org
- Record status · verification
- UPDATED · NVD API
- CPE
- cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*, cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:22.1.3:*:*:*:*:*:*:*, cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:22.1.0:*:*:*:*:*:*:*, cpe:2.3:a:oracle:communications_cloud_native_core_network_repository_function:22.1.2:*:*:*:*:*:*:*, cpe:2.3:a:oracle:communications_cloud_native_core_network_repository_function:22.2.0:*:*:*:*:*:*:*, cpe:2.3:a:oracle:communications_cloud_native_core_security_edge_protection_proxy:22.1.1:*:*:*:*:*:*:*, cpe:2.3:a:oracle:communications_cloud_native_core_unified_data_repository:22.2.0:*:*:*:*:*:*:*, cpe:2.3:a:oracle:enterprise_operations_monitor:4.3:*:*:*:*:*:*:*, cpe:2.3:a:oracle:enterprise_operations_monitor:4.4:*:*:*:*:*:*:*, cpe:2.3:a:oracle:enterprise_operations_monitor:5.0:*:*:*:*:*:*:*
Evidence & Provenance
Linked by the query's stored exact CVE association. Review required tables and validation status before use.
Detection Hunting Query
Target: DeviceTvmSoftwareVulnerabilities•Defender XDR
Detect endpoints exposed to CVE-2022-23219
Purpose: Exposure assessment (Category: Exposure Check)Why linked: Query metadata names CVE-2022-23219
DeviceTvmSoftwareVulnerabilities| where CveId == "CVE-2022-23219"| project DeviceId, DeviceName, OSPlatform, OSVersion, SoftwareVendor, SoftwareName, SoftwareVersion, CveId, VulnerabilitySeverityLevel, RecommendedSecurityUpdate, RecommendedSecurityUpdateId| sort by VulnerabilitySeverityLevel descSchema Checked · Not runtime validatedSource: SecOps Signal deterministic template · Limited verificationStatic screening: Passed structure and schema checks; tenant execution is not verified.
Correlated briefings
— No published briefing references this CVE
SecOps Signal surfaces public advisory facts only. A missing value means the source has not published it, not that your environment is unaffected. No tenant inventory is connected.