CVE-2019-15692

TigerVNC version prior to 1.10.1 is vulnerable to heap buffer overflow. Vulnerability could be triggered from CopyRectDecoder due to incorrect value checks. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.

References

Affected packages

Git / github.com/cendioossman/tigervnc

Affected ranges

Type: GIT
Repo: https://github.com/cendioossman/tigervnc
Events: Introduced

0 Unknown introduced commit / All previous commits are affected

Fixed

996356b6c65ca165ee1ea46a571c32a1dc3c3821

Affected versions

v0.*

v0.0.90

v1.*

v1.1.90

Database specific

vanir_signatures

[
    {
        "signature_version": "v1",
        "source": "https://github.com/cendioossman/tigervnc/commit/996356b6c65ca165ee1ea46a571c32a1dc3c3821",
        "deprecated": false,
        "target": {
            "file": "common/rfb/PixelBuffer.cxx",
            "function": "FullFramePixelBuffer::setBuffer"
        },
        "id": "CVE-2019-15692-5e3ac25c",
        "digest": {
            "function_hash": "137663250478881754422468393661624500259",
            "length": 188.0
        },
        "signature_type": "Function"
    },
    {
        "signature_version": "v1",
        "source": "https://github.com/cendioossman/tigervnc/commit/996356b6c65ca165ee1ea46a571c32a1dc3c3821",
        "deprecated": false,
        "target": {
            "file": "common/rfb/PixelBuffer.cxx",
            "function": "PixelBuffer::setSize"
        },
        "id": "CVE-2019-15692-68bcb23a",
        "digest": {
            "function_hash": "314322362212804435999773152376304328589",
            "length": 97.0
        },
        "signature_type": "Function"
    },
    {
        "signature_version": "v1",
        "source": "https://github.com/cendioossman/tigervnc/commit/996356b6c65ca165ee1ea46a571c32a1dc3c3821",
        "deprecated": false,
        "target": {
            "file": "common/rfb/PixelBuffer.cxx"
        },
        "id": "CVE-2019-15692-7dd42b61",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "168996672940369909676115174818288778088",
                "13900705579432613094098652131674056094",
                "108420105531892965375792441098246925094",
                "285809962758851172979569908944258732998",
                "78043888707781922736952559322924824672",
                "81365129688946810061282529014797843602",
                "174485395056516859412971562483711709132",
                "83195346651603593710178310374587794493",
                "70857029825018839529435537888291655195",
                "24470555368808820631825685207351685863",
                "132540213983604438509553248019119597545"
            ]
        },
        "signature_type": "Line"
    }
]

Git / github.com/tigervnc/tigervnc