CVE-2020-14401

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Source
https://cve.org/CVERecord?id=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
DEBIAN (1)
MGASA (1)
openSUSE (4)
SUSE (3)
UBUNTU (1)
Related
openSUSE (4)
SUSE (3)
Published
2020-06-17T16:15:12Z
Modified
2026-08-07T16:35:52Z
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.

Database specific 
{
    "unresolved_ranges":  [
        {
            "cpes":  [
                "cpe:2.3:o:siemens:simatic_itc1500_firmware:*:*:*:*:*:*:*:*"
            ],
            "extracted_events":  [
                {
                    "introduced":  "3.0.0.0"
                },
                {
                    "fixed":  "3.2.1.0"
                }
            ],
            "source":  "CPE_RANGE",
            "vendor_product":  "siemens:simatic_itc1500_firmware"
        },
        {
            "cpes":  [
                "cpe:2.3:o:siemens:simatic_itc1500_pro_firmware:*:*:*:*:*:*:*:*"
            ],
            "extracted_events":  [
                {
                    "introduced":  "3.0.0.0"
                },
                {
                    "fixed":  "3.2.1.0"
                }
            ],
            "source":  "CPE_RANGE",
            "vendor_product":  "siemens:simatic_itc1500_pro_firmware"
        },
        {
            "cpes":  [
                "cpe:2.3:o:siemens:simatic_itc1900_firmware:*:*:*:*:*:*:*:*"
            ],
            "extracted_events":  [
                {
                    "introduced":  "3.0.0.0"
                },
                {
                    "fixed":  "3.2.1.0"
                }
            ],
            "source":  "CPE_RANGE",
            "vendor_product":  "siemens:simatic_itc1900_firmware"
        },
        {
            "cpes":  [
                "cpe:2.3:o:siemens:simatic_itc1900_pro_firmware:*:*:*:*:*:*:*:*"
            ],
            "extracted_events":  [
                {
                    "introduced":  "3.0.0.0"
                },
                {
                    "fixed":  "3.2.1.0"
                }
            ],
            "source":  "CPE_RANGE",
            "vendor_product":  "siemens:simatic_itc1900_pro_firmware"
        },
        {
            "cpes":  [
                "cpe:2.3:o:siemens:simatic_itc2200_firmware:*:*:*:*:*:*:*:*"
            ],
            "extracted_events":  [
                {
                    "introduced":  "3.0.0.0"
                },
                {
                    "fixed":  "3.2.1.0"
                }
            ],
            "source":  "CPE_RANGE",
            "vendor_product":  "siemens:simatic_itc2200_firmware"
        },
        {
            "cpes":  [
                "cpe:2.3:o:siemens:simatic_itc2200_pro_firmware:*:*:*:*:*:*:*:*"
            ],
            "extracted_events":  [
                {
                    "introduced":  "3.0.0.0"
                },
                {
                    "fixed":  "3.2.1.0"
                }
            ],
            "source":  "CPE_RANGE",
            "vendor_product":  "siemens:simatic_itc2200_pro_firmware"
        },
        {
            "cpes":  [
                "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
                "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "extracted_events":  [
                {
                    "introduced":  "8.0"
                },
                {
                    "last_affected":  "8.0"
                },
                {
                    "introduced":  "9.0"
                },
                {
                    "last_affected":  "9.0"
                }
            ],
            "source":  "CPE_STRING",
            "vendor_product":  "debian:debian_linux"
        },
        {
            "cpes":  [
                "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*",
                "cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*"
            ],
            "extracted_events":  [
                {
                    "introduced":  "15.1"
                },
                {
                    "last_affected":  "15.1"
                },
                {
                    "introduced":  "15.2"
                },
                {
                    "last_affected":  "15.2"
                }
            ],
            "source":  "CPE_STRING",
            "vendor_product":  "opensuse:leap"
        }
    ]
}
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
a6788d1da719ae006605b78d22f5a9f170b423af
Database specific
Show details 
{
    "cpe":  "cpe:2.3:a:libvncserver_project:libvncserver:*:*:*:*:*:*:*:*",
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "0.9.13"
        }
    ],
    "source":  [
        "CPE_RANGE",
        "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

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-14401.json"
vanir_signatures 
[
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
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                "267256123706877668341539977664866338222",
                "69871433148263572302381190377581994547",
                "163000897568946296525180340287495104796"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2020-14401-b9e34590",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/libvnc/libvncserver/commit/a6788d1da719ae006605b78d22f5a9f170b423af",
        "target":  {
            "file":  "libvncserver/scale.c"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "285897253734337289413665599072403539224",
            "length":  3173
        },
        "id":  "CVE-2020-14401-f7899987",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/libvnc/libvncserver/commit/a6788d1da719ae006605b78d22f5a9f170b423af",
        "target":  {
            "file":  "libvncserver/scale.c",
            "function":  "rfbScaledScreenUpdateRect"
        }
    }
]
vanir_signatures_modified 
"2026-08-07T16:35:52Z"