CVE-2024-8006

Remote packet capture support is disabled by default in libpcap. When a user builds libpcap with remote packet capture support enabled, one of the functions that become available is pcap_findalldevs_ex(). One of the function arguments can be a filesystem path, which normally means a directory with input data files. When the specified path cannot be used as a directory, the function receives NULL from opendir(), but does not check the return value and passes the NULL value to readdir(), which causes a NULL pointer derefence.

CVSS v3 4.4 MEDIUM

4.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/the-tcpdump-group/libpcap/commit/0f8a103469ce87d2b8d68c5130a46ddb7fb5eb29	Patch
https://github.com/the-tcpdump-group/libpcap/commit/8a633ee5b9ecd9d38a587ac9b204e2380713b0d6	Patch

Configurations

Configuration 1 (hide)

cpe:2.3:a:tcpdump:libpcap:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2024-08-31 00:15

Updated : 2024-09-19 17:46

NVD link : CVE-2024-8006

Mitre link : CVE-2024-8006

CVE.ORG link : CVE-2024-8006

JSON object : View

Products Affected

tcpdump

libpcap

CWE

CWE-476

NULL Pointer Dereference

{"id": "CVE-2024-8006", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security@tcpdump.org", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.4, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 0.8}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.4, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 0.8}]}, "published": "2024-08-31T00:15:05.743", "references": [{"url": "https://github.com/the-tcpdump-group/libpcap/commit/0f8a103469ce87d2b8d68c5130a46ddb7fb5eb29", "tags": ["Patch"], "source": "security@tcpdump.org"}, {"url": "https://github.com/the-tcpdump-group/libpcap/commit/8a633ee5b9ecd9d38a587ac9b204e2380713b0d6", "tags": ["Patch"], "source": "security@tcpdump.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security@tcpdump.org", "description": [{"lang": "en", "value": "CWE-476"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-476"}]}], "descriptions": [{"lang": "en", "value": "Remote packet capture support is disabled by default in libpcap. When a user builds libpcap with remote packet capture support enabled, one of the functions that become available is pcap_findalldevs_ex(). One of the function arguments can be a filesystem path, which normally means a directory with input data files. When the specified path cannot be used as a directory, the function receives NULL from opendir(), but does not check the return value and passes the NULL value to readdir(), which causes a NULL pointer derefence."}, {"lang": "es", "value": "La compatibilidad con captura remota de paquetes est\u00e1 deshabilitada de forma predeterminada en libpcap. Cuando un usuario compila libpcap con la compatibilidad con captura remota de paquetes habilitada, una de las funciones que se vuelven disponibles es pcap_findalldevs_ex(). Uno de los argumentos de la funci\u00f3n puede ser una ruta del sistema de archivos, que normalmente significa un directorio con archivos de datos de entrada. Cuando la ruta especificada no se puede usar como directorio, la funci\u00f3n recibe NULL de opendir(), pero no verifica el valor de retorno y pasa el valor NULL a readdir(), lo que provoca una desreferencia del puntero NULL."}], "lastModified": "2024-09-19T17:46:03.447", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:tcpdump:libpcap:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "83511DB8-7FA5-4C5D-8E9D-B6310A1006C4", "versionEndExcluding": "1.10.5"}], "operator": "OR"}]}], "sourceIdentifier": "security@tcpdump.org"}