CVE-2020-14399

See a problem?
Please try reporting it to the source first.
Source
https://nvd.nist.gov/vuln/detail/CVE-2020-14399
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-14399.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2020-14399
Downstream
Related
Published
2020-06-17T16:15:11Z
Modified
2025-10-15T11:56:24.024426Z
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. Byte-aligned data is accessed through uint32_t pointers in libvncclient/rfbproto.c. NOTE: there is reportedly "no trust boundary crossed.

Database specific 
{
    "isDisputed": true
}
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
23e5cbe6b090d7f22982aee909a6a618174d3c2d

Affected versions

LibVNCServer-0.*

LibVNCServer-0.9.10
LibVNCServer-0.9.11
LibVNCServer-0.9.12
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

vanir_signatures

[
    {
        "deprecated": false,
        "digest": {
            "length": 6767.0,
            "function_hash": "292719199051264423232023195326445512722"
        },
        "signature_type": "Function",
        "source": "https://github.com/libvnc/libvncserver/commit/23e5cbe6b090d7f22982aee909a6a618174d3c2d",
        "id": "CVE-2020-14399-2ff28e15",
        "target": {
            "file": "libvncclient/rfbproto.c",
            "function": "SetFormatAndEncodings"
        },
        "signature_version": "v1"
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "289411994645727400457192257966915221379",
                "208837877831103949359398245394014295558",
                "332985853190493794914941061839301886752",
                "88759214378154492617504044073384416189",
                "101271520213990510100092381220390867601",
                "55113811666554751528682358494177991134",
                "181492142388692610613554751535531639094",
                "218617286323755537607650297728216934745",
                "29442809713893014097360319726760739566",
                "285295838407132926322499123666082004538"
            ],
            "threshold": 0.9
        },
        "signature_type": "Line",
        "source": "https://github.com/libvnc/libvncserver/commit/23e5cbe6b090d7f22982aee909a6a618174d3c2d",
        "id": "CVE-2020-14399-4d282684",
        "target": {
            "file": "libvncclient/rfbproto.c"
        },
        "signature_version": "v1"
    }
]