CVE-2020-14403

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Source
https://nvd.nist.gov/vuln/detail/CVE-2020-14403
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-14403.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2020-14403
Downstream
Related
Published
2020-06-17T16:15:12Z
Modified
2025-09-19T11:57:19.826701Z
Severity
  • 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L CVSS Calculator
Summary
[none]
Details

An issue was discovered in LibVNCServer before 0.9.13. libvncserver/hextile.c allows out-of-bounds access via encodings.

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
74e8a70f2c9a5248d6718ce443e07c7ed314dfff

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_type": "Line",
            "target": {
                "file": "libvncserver/hextile.c"
            },
            "source": "https://github.com/libvnc/libvncserver/commit/74e8a70f2c9a5248d6718ce443e07c7ed314dfff",
            "id": "CVE-2020-14403-2881c67e",
            "signature_version": "v1",
            "deprecated": false,
            "digest": {
                "line_hashes": [
                    "279186788467601084510397377312630471501",
                    "136564391502689261425817146893094173910",
                    "112617782039554860452708764507028252043",
                    "128154823961943837977491631399247931438"
                ],
                "threshold": 0.9
            }
        },
        {
            "signature_type": "Line",
            "target": {
                "file": "libvncserver/rre.c"
            },
            "source": "https://github.com/libvnc/libvncserver/commit/74e8a70f2c9a5248d6718ce443e07c7ed314dfff",
            "id": "CVE-2020-14403-42bbc5e2",
            "signature_version": "v1",
            "deprecated": false,
            "digest": {
                "line_hashes": [
                    "289252992523367327632354621665320742352",
                    "36512170735046696879154038989677648515",
                    "277157400668572645645471330322775066349",
                    "64330010330190451697336720342933185390"
                ],
                "threshold": 0.9
            }
        },
        {
            "signature_type": "Function",
            "target": {
                "function": "bpp",
                "file": "libvncserver/hextile.c"
            },
            "source": "https://github.com/libvnc/libvncserver/commit/74e8a70f2c9a5248d6718ce443e07c7ed314dfff",
            "id": "CVE-2020-14403-87ba1727",
            "signature_version": "v1",
            "deprecated": false,
            "digest": {
                "function_hash": "37231841470234379109527685760802316726",
                "length": 1779.0
            }
        },
        {
            "signature_type": "Function",
            "target": {
                "function": "bpp",
                "file": "libvncserver/rre.c"
            },
            "source": "https://github.com/libvnc/libvncserver/commit/74e8a70f2c9a5248d6718ce443e07c7ed314dfff",
            "id": "CVE-2020-14403-c4129626",
            "signature_version": "v1",
            "deprecated": false,
            "digest": {
                "function_hash": "15063665914612139429731961338670674392",
                "length": 1970.0
            }
        },
        {
            "signature_type": "Line",
            "target": {
                "file": "libvncserver/corre.c"
            },
            "source": "https://github.com/libvnc/libvncserver/commit/74e8a70f2c9a5248d6718ce443e07c7ed314dfff",
            "id": "CVE-2020-14403-eff32b91",
            "signature_version": "v1",
            "deprecated": false,
            "digest": {
                "line_hashes": [
                    "289252992523367327632354621665320742352",
                    "36512170735046696879154038989677648515",
                    "277157400668572645645471330322775066349",
                    "64330010330190451697336720342933185390"
                ],
                "threshold": 0.9
            }
        },
        {
            "signature_type": "Function",
            "target": {
                "function": "bpp",
                "file": "libvncserver/corre.c"
            },
            "source": "https://github.com/libvnc/libvncserver/commit/74e8a70f2c9a5248d6718ce443e07c7ed314dfff",
            "id": "CVE-2020-14403-f867ff26",
            "signature_version": "v1",
            "deprecated": false,
            "digest": {
                "function_hash": "276190757486447906599022657754585572557",
                "length": 1933.0
            }
        }
    ]
}