CVE-2020-14398

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Source
https://nvd.nist.gov/vuln/detail/CVE-2020-14398
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-14398.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-14398
Downstream
Related
Published
2020-06-17T16:15:11Z
Modified
2025-10-21T05:32:57.169215Z
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. An improperly closed TCP connection causes an infinite loop in libvncclient/sockets.c.

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
57433015f856cc12753378254ce4f1c78f5d9c7b

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

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        "signature_type": "Line",
        "digest": {
            "threshold": 0.9,
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            ]
        },
        "target": {
            "file": "libvncclient/sockets.c"
        },
        "signature_version": "v1",
        "id": "CVE-2020-14398-475aebc7",
        "deprecated": false,
        "source": "https://github.com/libvnc/libvncserver/commit/57433015f856cc12753378254ce4f1c78f5d9c7b"
    },
    {
        "signature_type": "Line",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
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            ]
        },
        "target": {
            "file": "rfb/rfbclient.h"
        },
        "signature_version": "v1",
        "id": "CVE-2020-14398-698de838",
        "deprecated": false,
        "source": "https://github.com/libvnc/libvncserver/commit/57433015f856cc12753378254ce4f1c78f5d9c7b"
    },
    {
        "signature_type": "Line",
        "digest": {
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            ]
        },
        "target": {
            "file": "libvncclient/vncviewer.c"
        },
        "signature_version": "v1",
        "id": "CVE-2020-14398-c26dc7dd",
        "deprecated": false,
        "source": "https://github.com/libvnc/libvncserver/commit/57433015f856cc12753378254ce4f1c78f5d9c7b"
    },
    {
        "signature_type": "Function",
        "digest": {
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            "length": 3287.0
        },
        "target": {
            "file": "libvncclient/vncviewer.c",
            "function": "rfbGetClient"
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        "signature_version": "v1",
        "id": "CVE-2020-14398-c3c16db2",
        "deprecated": false,
        "source": "https://github.com/libvnc/libvncserver/commit/57433015f856cc12753378254ce4f1c78f5d9c7b"
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    {
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        "digest": {
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            "length": 3425.0
        },
        "target": {
            "file": "libvncclient/sockets.c",
            "function": "ReadFromRFBServer"
        },
        "signature_version": "v1",
        "id": "CVE-2020-14398-d84cf98c",
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        "source": "https://github.com/libvnc/libvncserver/commit/57433015f856cc12753378254ce4f1c78f5d9c7b"
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]