CVE-2019-20840

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Source
https://cve.org/CVERecord?id=CVE-2019-20840
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-20840.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2019-20840
Downstream
Related
Published
2020-06-17T16:15:11.523Z
Modified
2026-05-15T12:03:13.842219832Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

An issue was discovered in LibVNCServer before 0.9.13. libvncserver/ws_decode.c can lead to a crash because of unaligned accesses in hybiReadAndDecode.

Database specific 
{
    "unresolved_ranges": [
        {
            "source": "CPE_FIELD",
            "vendor_product": "canonical:ubuntu_linux",
            "extracted_events": [
                {
                    "last_affected": "14.04"
                },
                {
                    "last_affected": "16.04"
                },
                {
                    "last_affected": "16.04"
                },
                {
                    "last_affected": "18.04"
                },
                {
                    "last_affected": "18.10"
                },
                {
                    "last_affected": "20.04"
                }
            ],
            "cpes": [
                "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*"
            ]
        },
        {
            "source": "CPE_FIELD",
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
                {
                    "last_affected": "8.0"
                },
                {
                    "last_affected": "9.0"
                }
            ],
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
                "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ]
        },
        {
            "source": "CPE_FIELD",
            "vendor_product": "opensuse:leap",
            "extracted_events": [
                {
                    "last_affected": "15.2"
                }
            ],
            "cpes": [
                "cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*"
            ]
        },
        {
            "vendor_product": "siemens:simatic_itc1500_firmware",
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "introduced": "3.0.0.0"
                },
                {
                    "fixed": "3.2.1.0"
                }
            ],
            "cpes": [
                "cpe:2.3:o:siemens:simatic_itc1500_firmware:*:*:*:*:*:*:*:*"
            ]
        },
        {
            "source": "CPE_FIELD",
            "vendor_product": "siemens:simatic_itc1500_pro_firmware",
            "extracted_events": [
                {
                    "introduced": "3.0.0.0"
                },
                {
                    "fixed": "3.2.1.0"
                }
            ],
            "cpes": [
                "cpe:2.3:o:siemens:simatic_itc1500_pro_firmware:*:*:*:*:*:*:*:*"
            ]
        },
        {
            "source": "CPE_FIELD",
            "vendor_product": "siemens:simatic_itc1900_firmware",
            "extracted_events": [
                {
                    "introduced": "3.0.0.0"
                },
                {
                    "fixed": "3.2.1.0"
                }
            ],
            "cpes": [
                "cpe:2.3:o:siemens:simatic_itc1900_firmware:*:*:*:*:*:*:*:*"
            ]
        },
        {
            "source": "CPE_FIELD",
            "vendor_product": "siemens:simatic_itc1900_pro_firmware",
            "extracted_events": [
                {
                    "introduced": "3.0.0.0"
                },
                {
                    "fixed": "3.2.1.0"
                }
            ],
            "cpes": [
                "cpe:2.3:o:siemens:simatic_itc1900_pro_firmware:*:*:*:*:*:*:*:*"
            ]
        },
        {
            "vendor_product": "siemens:simatic_itc2200_firmware",
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "introduced": "3.0.0.0"
                },
                {
                    "fixed": "3.2.1.0"
                }
            ],
            "cpes": [
                "cpe:2.3:o:siemens:simatic_itc2200_firmware:*:*:*:*:*:*:*:*"
            ]
        },
        {
            "vendor_product": "siemens:simatic_itc2200_pro_firmware",
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "introduced": "3.0.0.0"
                },
                {
                    "fixed": "3.2.1.0"
                }
            ],
            "cpes": [
                "cpe:2.3:o:siemens:simatic_itc2200_pro_firmware:*:*:*:*:*:*:*:*"
            ]
        }
    ]
}
References

Affected packages