CVE-2017-18922

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Source
https://cve.org/CVERecord?id=CVE-2017-18922
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2017-18922.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2017-18922
Downstream
Related
Published
2020-06-30T11:15:10.380Z
Modified
2026-04-11T12:05:42.496327Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

It was discovered that websockets.c in LibVNCServer prior to 0.9.12 did not properly decode certain WebSocket frames. A malicious attacker could exploit this by sending specially crafted WebSocket frames to a server, causing a heap-based buffer overflow.

Database specific 
{
    "unresolved_ranges": [
        {
            "source": "CPE_FIELD",
            "cpe": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "16.04"
                }
            ]
        },
        {
            "source": "CPE_FIELD",
            "cpe": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "18.04"
                }
            ]
        },
        {
            "source": "CPE_FIELD",
            "cpe": "cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "19.10"
                }
            ]
        },
        {
            "source": "CPE_FIELD",
            "cpe": "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "20.04"
                }
            ]
        },
        {
            "source": "CPE_FIELD",
            "cpe": "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "31"
                }
            ]
        },
        {
            "source": "CPE_FIELD",
            "cpe": "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "32"
                }
            ]
        },
        {
            "source": "CPE_FIELD",
            "cpe": "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "15.1"
                }
            ]
        },
        {
            "source": "CPE_FIELD",
            "cpe": "cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "15.2"
                }
            ]
        },
        {
            "source": "CPE_FIELD",
            "cpe": "cpe:2.3:o:siemens:simatic_itc1500_firmware:*:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "introduced": "3.0.0.0"
                },
                {
                    "fixed": "3.2.1.0"
                }
            ]
        },
        {
            "source": "CPE_FIELD",
            "cpe": "cpe:2.3:o:siemens:simatic_itc1500_pro_firmware:*:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "introduced": "3.0.0.0"
                },
                {
                    "fixed": "3.2.1.0"
                }
            ]
        },
        {
            "source": "CPE_FIELD",
            "cpe": "cpe:2.3:o:siemens:simatic_itc1900_firmware:*:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "introduced": "3.0.0.0"
                },
                {
                    "fixed": "3.2.1.0"
                }
            ]
        },
        {
            "source": "CPE_FIELD",
            "cpe": "cpe:2.3:o:siemens:simatic_itc1900_pro_firmware:*:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "introduced": "3.0.0.0"
                },
                {
                    "fixed": "3.2.1.0"
                }
            ]
        },
        {
            "source": "CPE_FIELD",
            "cpe": "cpe:2.3:o:siemens:simatic_itc2200_firmware:*:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "introduced": "3.0.0.0"
                },
                {
                    "fixed": "3.2.1.0"
                }
            ]
        },
        {
            "source": "CPE_FIELD",
            "cpe": "cpe:2.3:o:siemens:simatic_itc2200_pro_firmware:*:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "introduced": "3.0.0.0"
                },
                {
                    "fixed": "3.2.1.0"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/libvnc/libvncserver

Affected ranges

Type
GIT
Repo
https://github.com/libvnc/libvncserver
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
0a70095271d845d16a3ed17354841b01f33963ad
Fixed
aac95a9dcf4bbba87b76c72706c3221a842ca433
Database specific 
{
    "source": [
        "CPE_FIELD",
        "REFERENCES"
    ],
    "cpe": "cpe:2.3:a:libvncserver_project:libvncserver:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.9.12"
        }
    ]
}

Affected versions

LibVNCServer-0.*
LibVNCServer-0.9.10
LibVNCServer-0.9.11
LibVNCServer-0.9.8
LibVNCServer-0.9.9
Other
X11VNC_0_9_10
X11VNC_0_9_11
X11VNC_0_9_12
X11VNC_0_9_7
X11VNC_0_9_8
X11VNC_0_9_9
X11VNC_REL_0_9_4
X11VNC_REL_0_9_5
X11VNC_REL_0_9_6

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2017-18922.json"