CVE-2018-21247

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2018-21247
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-21247.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2018-21247
Downstream
Related
Published
2020-06-17T16:15:11.367Z
Modified
2026-03-15T22:19:59.161915Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

An issue was discovered in LibVNCServer before 0.9.13. There is an information leak (of uninitialized memory contents) in the libvncclient/rfbproto.c ConnectToRFBRepeater function.

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
Last affected
0a70095271d845d16a3ed17354841b01f33963ad
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "0.9.12"
        }
    ]
}

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

unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "14.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "16.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "16.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "18.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "18.10"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "9.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "3.0.0.0"
            },
            {
                "fixed": "3.2.1.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "3.0.0.0"
            },
            {
                "fixed": "3.2.1.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "3.0.0.0"
            },
            {
                "fixed": "3.2.1.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "3.0.0.0"
            },
            {
                "fixed": "3.2.1.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "3.0.0.0"
            },
            {
                "fixed": "3.2.1.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "3.0.0.0"
            },
            {
                "fixed": "3.2.1.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "15.2"
            }
        ]
    }
]
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-21247.json"