CVE-2020-14396

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Source
https://nvd.nist.gov/vuln/detail/CVE-2020-14396
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-14396.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2020-14396
Downstream
Published
2020-06-17T16:15:11Z
Modified
2025-10-15T11:56:15.873553Z
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. libvncclient/tls_openssl.c has a NULL pointer dereference.

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
33441d90a506d5f3ae9388f2752901227e430553

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",
        "id": "CVE-2020-14396-a63a5cc6",
        "source": "https://github.com/libvnc/libvncserver/commit/33441d90a506d5f3ae9388f2752901227e430553",
        "target": {
            "file": "libvncclient/tls_openssl.c",
            "function": "open_ssl_connection"
        },
        "digest": {
            "function_hash": "289870025509888091998254113739023981642",
            "length": 2497.0
        },
        "signature_type": "Function",
        "deprecated": false
    },
    {
        "signature_version": "v1",
        "id": "CVE-2020-14396-c848c6fe",
        "source": "https://github.com/libvnc/libvncserver/commit/33441d90a506d5f3ae9388f2752901227e430553",
        "target": {
            "file": "libvncclient/tls_openssl.c"
        },
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "80226186285922043742937663968878156146",
                "23982019333981318047145580796055385006",
                "78556645990089934348837580570819060018",
                "129536370082382921633149900127119405369",
                "179482101782982562967665731851017857863",
                "57481811473761647249782608015147496236",
                "170469348421599386093090533339237144854",
                "132784373091711427979626134283971151697"
            ]
        },
        "signature_type": "Line",
        "deprecated": false
    }
]