2025-03-23 03:03:54 +00:00

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{
"id": "CVE-2025-29913",
"sourceIdentifier": "security-advisories@github.com",
"published": "2025-03-17T23:15:18.590",
"lastModified": "2025-03-17T23:15:18.590",
"vulnStatus": "Awaiting Analysis",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "CryptoLib provides a software-only solution using the CCSDS Space Data Link Security Protocol - Extended Procedures (SDLS-EP) to secure communications between a spacecraft running the core Flight System (cFS) and a ground station. A critical heap buffer overflow vulnerability was identified in the `Crypto_TC_Prep_AAD` function of CryptoLib versions 1.3.3 and prior. This vulnerability allows an attacker to trigger a Denial of Service (DoS) or potentially execute arbitrary code (RCE) by providing a maliciously crafted telecommand (TC) frame that causes an unsigned integer underflow. The vulnerability lies in the function `Crypto_TC_Prep_AAD`, specifically during the computation of `tc_mac_start_index`. The affected code incorrectly calculates the MAC start index without ensuring it remains within the bounds of the `ingest` buffer. When `tc_mac_start_index` underflows due to an incorrect length calculation, the function attempts to access an out-of-bounds memory location, leading to a segmentation fault. The vulnerability is still present in the repository as of commit `d3cc420ace96d02a5b7e83d88cbd2e48010d5723`."
},
{
"lang": "es",
"value": "CryptoLib ofrece una soluci\u00f3n exclusivamente de software que utiliza el Protocolo de Seguridad de Enlace de Datos Espaciales CCSDS - Procedimientos Extendidos (SDLS-EP) para proteger las comunicaciones entre una nave espacial que ejecuta el Sistema de Vuelo (cFS) y una estaci\u00f3n terrestre. Se identific\u00f3 una vulnerabilidad cr\u00edtica de desbordamiento del b\u00fafer de pila en la funci\u00f3n `Crypto_TC_Prep_AAD` de las versiones 1.3.3 y anteriores de CryptoLib. Esta vulnerabilidad permite a un atacante desencadenar una denegaci\u00f3n de servicio (DoS) o potencialmente ejecutar c\u00f3digo arbitrario (RCE) al proporcionar una trama de telecomando (TC) maliciosa que causa un desbordamiento por debajo de un entero sin signo. La vulnerabilidad reside en la funci\u00f3n `Crypto_TC_Prep_AAD`, espec\u00edficamente durante el c\u00e1lculo de `tc_mac_start_index`. El c\u00f3digo afectado calcula incorrectamente el \u00edndice de inicio MAC sin garantizar que permanezca dentro de los l\u00edmites del b\u00fafer de ingesta. Cuando `tc_mac_start_index` presenta un desbordamiento por debajo de lo permitido debido a un c\u00e1lculo de longitud incorrecto, la funci\u00f3n intenta acceder a una ubicaci\u00f3n de memoria fuera de los l\u00edmites, lo que provoca un fallo de segmentaci\u00f3n. La vulnerabilidad persiste en el repositorio a partir del commit `d3cc420ace96d02a5b7e83d88cbd2e48010d5723`."
}
],
"metrics": {
"cvssMetricV40": [
{
"source": "security-advisories@github.com",
"type": "Secondary",
"cvssData": {
"version": "4.0",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"baseScore": 8.9,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnAvailabilityImpact": "HIGH",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"subAvailabilityImpact": "NONE",
"exploitMaturity": "PROOF_OF_CONCEPT",
"confidentialityRequirement": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"availabilityRequirement": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"valueDensity": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED"
}
}
]
},
"weaknesses": [
{
"source": "security-advisories@github.com",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-125"
},
{
"lang": "en",
"value": "CWE-191"
}
]
}
],
"references": [
{
"url": "https://github.com/nasa/CryptoLib/security/advisories/GHSA-q4v2-fvrv-qrf6",
"source": "security-advisories@github.com"
}
]
}