« Back to list

CVE-2018-8788

Status: ModifiedCritical (9.8)—

FreeRDP prior to version 2.0.0-rc4 contains an Out-Of-Bounds Write of up to 4 bytes in function nsc_rle_decode() that results in a memory corruption and possibly even a remote code execution.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (3)

Canonical — Ubuntu LinuxDebian — Debian LinuxFreerdp — Freerdp

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2018-8788",
  "cveTags": [],
  "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,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.0/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
      }
    ]
  },
  "affected": [
    {
      "source": "cve@checkpoint.com",
      "affectedData": [
        {
          "vendor": "Check Point Software Technologies Ltd.",
          "product": "FreeRDP",
          "versions": [
            {
              "status": "affected",
              "version": "All versions prior to 2.0.0-rc4"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-11-29T18:29:00.990",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/106938",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "cve@checkpoint.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2019:0697",
      "source": "cve@checkpoint.com"
    },
    {
      "url": "https://github.com/FreeRDP/FreeRDP/commit/d1112c279bd1a327e8e4d0b5f371458bf2579659",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "cve@checkpoint.com"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2019/02/msg00015.html",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "source": "cve@checkpoint.com"
    },
    {
      "url": "https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "cve@checkpoint.com"
    },
    {
      "url": "https://usn.ubuntu.com/3845-1/",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "cve@checkpoint.com"
    },
    {
      "url": "https://usn.ubuntu.com/3845-2/",
      "source": "cve@checkpoint.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/106938",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2019:0697",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/FreeRDP/FreeRDP/commit/d1112c279bd1a327e8e4d0b5f371458bf2579659",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2019/02/msg00015.html",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://usn.ubuntu.com/3845-1/",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://usn.ubuntu.com/3845-2/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cve@checkpoint.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "FreeRDP prior to version 2.0.0-rc4 contains an Out-Of-Bounds Write of up to 4 bytes in function nsc_rle_decode() that results in a memory corruption and possibly even a remote code execution."
    },
    {
      "lang": "es",
      "value": "FreeRDP en versiones anteriores a la 2.0.0-rc4 contiene una escritura fuera de límites de hasta 4 bytes en la función nsc_rle_decode() que resulta en una corrupción de memoria y, probablemente, incluso en la ejecución remota de código."
    }
  ],
  "lastModified": "2026-06-17T02:05:23.403",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "FB13905B-B0E9-443E-B150-9D64E20DC464",
              "versionEndIncluding": "1.2.0"
            },
            {
              "criteria": "cpe:2.3:a:freerdp:freerdp:2.0.0:rc1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F226993C-3AB8-4F86-8591-40CAAC8DD73E"
            },
            {
              "criteria": "cpe:2.3:a:freerdp:freerdp:2.0.0:rc2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "985D90BF-3B2B-4A3C-B698-DBCB0241B95B"
            },
            {
              "criteria": "cpe:2.3:a:freerdp:freerdp:2.0.0:rc3:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7C4656D2-EEC4-4871-BA0F-76F760526B1B"
            }
          ],
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B5A6F2F3-4894-4392-8296-3B8DD2679084"
            },
            {
              "criteria": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B"
            },
            {
              "criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D"
            },
            {
              "criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "07C312A0-CD2C-4B9C-B064-6409B25C278F"
            }
          ],
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@checkpoint.com"
}