fkie_cve-2022-0982
Vulnerability from fkie_nvd
Published
2022-03-16 15:15
Modified
2024-11-21 06:39
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
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.
References
cve_disclosure@tech.gov.sghttps://github.com/xebd/accel-ppp/issues/164Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/xebd/accel-ppp/issues/164Third Party Advisory
Impacted products
Vendor Product Version
accel-ppp accel-ppp *


To clipboard 

{
   configurations: [
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:a:accel-ppp:accel-ppp:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "CB0C5840-2CCB-4241-8AD3-F3A591D314AA",
                     versionEndIncluding: "1.12.0",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
   ],
   cveTags: [],
   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 función telnet_input_char en el archivo opt/src/accel-pppd/cli/telnet.c sufre una vulnerabilidad de corrupción de memoria, por la que la entrada del usuario cmdline_len es copiada en un búfer fijo b-)buf sin ninguna comprobación de límites. Si el servidor es conectado con un cliente malicioso, las peticiones diseñadas del cliente pueden desencadenar esta vulnerabilidad de forma remota",
      },
   ],
   id: "CVE-2022-0982",
   lastModified: "2024-11-21T06:39:47.683",
   metrics: {
      cvssMetricV2: [
         {
            acInsufInfo: false,
            baseSeverity: "HIGH",
            cvssData: {
               accessComplexity: "LOW",
               accessVector: "NETWORK",
               authentication: "NONE",
               availabilityImpact: "PARTIAL",
               baseScore: 7.5,
               confidentialityImpact: "PARTIAL",
               integrityImpact: "PARTIAL",
               vectorString: "AV:N/AC:L/Au:N/C:P/I:P/A:P",
               version: "2.0",
            },
            exploitabilityScore: 10,
            impactScore: 6.4,
            obtainAllPrivilege: false,
            obtainOtherPrivilege: false,
            obtainUserPrivilege: false,
            source: "nvd@nist.gov",
            type: "Primary",
            userInteractionRequired: false,
         },
      ],
      cvssMetricV31: [
         {
            cvssData: {
               attackComplexity: "LOW",
               attackVector: "NETWORK",
               availabilityImpact: "HIGH",
               baseScore: 9.8,
               baseSeverity: "CRITICAL",
               confidentialityImpact: "HIGH",
               integrityImpact: "HIGH",
               privilegesRequired: "NONE",
               scope: "UNCHANGED",
               userInteraction: "NONE",
               vectorString: "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
               version: "3.1",
            },
            exploitabilityScore: 3.9,
            impactScore: 5.9,
            source: "nvd@nist.gov",
            type: "Primary",
         },
      ],
   },
   published: "2022-03-16T15:15:16.253",
   references: [
      {
         source: "cve_disclosure@tech.gov.sg",
         tags: [
            "Third Party Advisory",
         ],
         url: "https://github.com/xebd/accel-ppp/issues/164",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Third Party Advisory",
         ],
         url: "https://github.com/xebd/accel-ppp/issues/164",
      },
   ],
   sourceIdentifier: "cve_disclosure@tech.gov.sg",
   vulnStatus: "Modified",
   weaknesses: [
      {
         description: [
            {
               lang: "en",
               value: "CWE-787",
            },
         ],
         source: "nvd@nist.gov",
         type: "Primary",
      },
   ],
}


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