CVE-2020-14400

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2020-14400
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-14400.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2020-14400
Downstream
Related
Published
2020-06-17T16:15:11.993Z
Modified
2026-04-16T00:02:44.162060991Z
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 uint16_t pointers in libvncserver/translate.c. NOTE: Third parties do not consider this to be a vulnerability as there is no known path of exploitation or cross of a trust boundary

Database specific 
{
    "unresolved_ranges": [
        {
            "cpe": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*",
            "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:20.04:*:*:*:lts:*:*:*",
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "last_affected": "20.04"
                }
            ]
        },
        {
            "cpe": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "8.0"
                }
            ],
            "source": "CPE_FIELD"
        },
        {
            "cpe": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "9.0"
                }
            ],
            "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"
        }
    ]
}
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
2aa20dad4c23c18948d3f63b33f9dfec1f837729
Fixed
53073c8d7e232151ea2ecd8a1243124121e10e2d
Database specific 
{
    "cpe": "cpe:2.3:a:libvncserver_project:libvncserver:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.9.13"
        }
    ],
    "source": [
        "CPE_FIELD",
        "REFERENCES"
    ]
}

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_modified 
"2026-04-11T21:47:55Z"
vanir_signatures 
[
    {
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "27286812576839115884543175160988269078",
                "126378025424545499359211745975564175189",
                "94072546939175517512903866765638939671",
                "142913035614552476143277396473228735757",
                "16491202129239839746453209863899231208",
                "329118107097954020458462031759542038328",
                "139540123818845539957203460069661562707",
                "262702335076891001489415279451883678023",
                "268278606668869684054629684412740624732",
                "190302750283181718757184748493504315953"
            ]
        },
        "signature_type": "Line",
        "id": "CVE-2020-14400-70f37e3b",
        "signature_version": "v1",
        "source": "https://github.com/libvnc/libvncserver/commit/53073c8d7e232151ea2ecd8a1243124121e10e2d",
        "target": {
            "file": "libvncserver/translate.c"
        },
        "deprecated": false
    },
    {
        "digest": {
            "length": 1002.0,
            "function_hash": "53011332413877103642289004836945053853"
        },
        "signature_type": "Function",
        "signature_version": "v1",
        "id": "CVE-2020-14400-bcfad6c4",
        "source": "https://github.com/libvnc/libvncserver/commit/53073c8d7e232151ea2ecd8a1243124121e10e2d",
        "target": {
            "function": "rfbSetClientColourMapBGR233",
            "file": "libvncserver/translate.c"
        },
        "deprecated": false
    }
]
source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-14400.json"