CVE-2017-18922

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Source
https://cve.org/CVERecord?id=CVE-2017-18922
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-18922.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2017-18922
Downstream
Related
Published
2020-06-30T11:15:10.380Z
Modified
2026-03-10T14:24:51.327361Z
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.

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 
{
    "versions": [
        {
            "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

unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "16.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "18.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "19.10"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "20.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "15.1"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "15.2"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "31"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "32"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "3.0.0.0"
            },
            {
                "fixed": "3.2.1.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "3.0.0.0"
            },
            {
                "fixed": "3.2.1.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "3.0.0.0"
            },
            {
                "fixed": "3.2.1.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "3.0.0.0"
            },
            {
                "fixed": "3.2.1.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "3.0.0.0"
            },
            {
                "fixed": "3.2.1.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "3.0.0.0"
            },
            {
                "fixed": "3.2.1.0"
            }
        ]
    }
]
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-18922.json"