CVE-2022-0982

The telnet_input_char function in opt/src/accel-pppd/cli/telnet.c suffers from a memory corruption vulnerability, whereby user input cmdline_len is copied into a fixed buffer b->buf without any bound checks. If the server connects with a malicious client, crafted client requests can remotely trigger this vulnerability.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/xebd/accel-ppp/issues/164	Third Party Advisory
https://github.com/xebd/accel-ppp/issues/164	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:accel-ppp:accel-ppp:*:*:*:*:*:*:*:*

History

21 Nov 2024, 06:39

Type	Values Removed	Values Added
References	~~() https://github.com/xebd/accel-ppp/issues/164 - Third Party Advisory~~	() https://github.com/xebd/accel-ppp/issues/164 - Third Party Advisory

Information

Published : 2022-03-16 15:15

Updated : 2024-11-21 06:39

NVD link : CVE-2022-0982

Mitre link : CVE-2022-0982

CVE.ORG link : CVE-2022-0982

JSON object : View

Products Affected

accel-ppp

accel-ppp

CWE

CWE-787

Out-of-bounds Write

{"id": "CVE-2022-0982", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2022-03-16T15:15:16.253", "references": [{"url": "https://github.com/xebd/accel-ppp/issues/164", "tags": ["Third Party Advisory"], "source": "cve_disclosure@tech.gov.sg"}, {"url": "https://github.com/xebd/accel-ppp/issues/164", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "The telnet_input_char function in opt/src/accel-pppd/cli/telnet.c suffers from a memory corruption vulnerability, whereby user input cmdline_len is copied into a fixed buffer b->buf without any bound checks. If the server connects with a malicious client, crafted client requests can remotely trigger this vulnerability."}, {"lang": "es", "value": "La funci\u00f3n telnet_input_char en el archivo opt/src/accel-pppd/cli/telnet.c sufre una vulnerabilidad de corrupci\u00f3n de memoria, por la que la entrada del usuario cmdline_len es copiada en un b\u00fafer fijo b-)buf sin ninguna comprobaci\u00f3n de l\u00edmites. Si el servidor es conectado con un cliente malicioso, las peticiones dise\u00f1adas del cliente pueden desencadenar esta vulnerabilidad de forma remota"}], "lastModified": "2024-11-21T06:39:47.683", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:accel-ppp:accel-ppp:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CB0C5840-2CCB-4241-8AD3-F3A591D314AA", "versionEndIncluding": "1.12.0"}], "operator": "OR"}]}], "sourceIdentifier": "cve_disclosure@tech.gov.sg"}