CVE-2020-14403

See a problem?
Please try reporting it to the source first.
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
2025-10-15T11:56:25.913036Z
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_version": "v1",
        "id": "CVE-2020-14403-2881c67e",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "279186788467601084510397377312630471501",
                "136564391502689261425817146893094173910",
                "112617782039554860452708764507028252043",
                "128154823961943837977491631399247931438"
            ]
        },
        "source": "https://github.com/libvnc/libvncserver/commit/74e8a70f2c9a5248d6718ce443e07c7ed314dfff",
        "deprecated": false,
        "target": {
            "file": "libvncserver/hextile.c"
        },
        "signature_type": "Line"
    },
    {
        "signature_version": "v1",
        "id": "CVE-2020-14403-42bbc5e2",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "289252992523367327632354621665320742352",
                "36512170735046696879154038989677648515",
                "277157400668572645645471330322775066349",
                "64330010330190451697336720342933185390"
            ]
        },
        "source": "https://github.com/libvnc/libvncserver/commit/74e8a70f2c9a5248d6718ce443e07c7ed314dfff",
        "deprecated": false,
        "target": {
            "file": "libvncserver/rre.c"
        },
        "signature_type": "Line"
    },
    {
        "signature_version": "v1",
        "id": "CVE-2020-14403-87ba1727",
        "digest": {
            "length": 1779.0,
            "function_hash": "37231841470234379109527685760802316726"
        },
        "source": "https://github.com/libvnc/libvncserver/commit/74e8a70f2c9a5248d6718ce443e07c7ed314dfff",
        "deprecated": false,
        "target": {
            "function": "bpp",
            "file": "libvncserver/hextile.c"
        },
        "signature_type": "Function"
    },
    {
        "signature_version": "v1",
        "id": "CVE-2020-14403-c4129626",
        "digest": {
            "length": 1970.0,
            "function_hash": "15063665914612139429731961338670674392"
        },
        "source": "https://github.com/libvnc/libvncserver/commit/74e8a70f2c9a5248d6718ce443e07c7ed314dfff",
        "deprecated": false,
        "target": {
            "function": "bpp",
            "file": "libvncserver/rre.c"
        },
        "signature_type": "Function"
    },
    {
        "signature_version": "v1",
        "id": "CVE-2020-14403-eff32b91",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "289252992523367327632354621665320742352",
                "36512170735046696879154038989677648515",
                "277157400668572645645471330322775066349",
                "64330010330190451697336720342933185390"
            ]
        },
        "source": "https://github.com/libvnc/libvncserver/commit/74e8a70f2c9a5248d6718ce443e07c7ed314dfff",
        "deprecated": false,
        "target": {
            "file": "libvncserver/corre.c"
        },
        "signature_type": "Line"
    },
    {
        "signature_version": "v1",
        "id": "CVE-2020-14403-f867ff26",
        "digest": {
            "length": 1933.0,
            "function_hash": "276190757486447906599022657754585572557"
        },
        "source": "https://github.com/libvnc/libvncserver/commit/74e8a70f2c9a5248d6718ce443e07c7ed314dfff",
        "deprecated": false,
        "target": {
            "function": "bpp",
            "file": "libvncserver/corre.c"
        },
        "signature_type": "Function"
    }
]