CVE-2020-14401

Source
https://nvd.nist.gov/vuln/detail/CVE-2020-14401
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-14401.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-14401
Downstream
Related
Published
2020-06-17T16:15:12Z
Modified
2025-10-14T17:35:10.593737Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L CVSS Calculator
Summary
[none]
Details

An issue was discovered in LibVNCServer before 0.9.13. libvncserver/scale.c has a pixel_value integer 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

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": [
        {
            "signature_version": "v1",
            "signature_type": "Line",
            "target": {
                "file": "libvncserver/scale.c"
            },
            "id": "CVE-2020-14401-b9e34590",
            "digest": {
                "line_hashes": [
                    "248208949429347463031521643800921156886",
                    "267256123706877668341539977664866338222",
                    "69871433148263572302381190377581994547",
                    "163000897568946296525180340287495104796"
                ],
                "threshold": 0.9
            },
            "deprecated": false,
            "source": "https://github.com/libvnc/libvncserver/commit/a6788d1da719ae006605b78d22f5a9f170b423af"
        },
        {
            "signature_version": "v1",
            "signature_type": "Function",
            "target": {
                "file": "libvncserver/scale.c",
                "function": "rfbScaledScreenUpdateRect"
            },
            "id": "CVE-2020-14401-f7899987",
            "digest": {
                "length": 3173.0,
                "function_hash": "285897253734337289413665599072403539224"
            },
            "deprecated": false,
            "source": "https://github.com/libvnc/libvncserver/commit/a6788d1da719ae006605b78d22f5a9f170b423af"
        }
    ]
}