CVE-2019-15695

TigerVNC version prior to 1.10.1 is vulnerable to stack buffer overflow, which could be triggered from CMsgReader::readSetCursor. This vulnerability occurs due to insufficient sanitization of PixelFormat. Since remote attacker can choose offset from start of the buffer to start writing his values, 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

05e28490873a861379c943bf616614b78b558b89

Affected versions

v0.*

v0.0.90

v1.*

v1.1.90

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-15695.json"

vanir_signatures

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        "signature_version": "v1",
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        "digest": {
            "function_hash": "238102010840006490624765670775544123760",
            "length": 672.0
        },
        "id": "CVE-2019-15695-800dddaa",
        "deprecated": false,
        "target": {
            "file": "tests/unit/pixelformat.cxx",
            "function": "is888Tests"
        }
    },
    {
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/cendioossman/tigervnc/commit/05e28490873a861379c943bf616614b78b558b89",
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            "threshold": 0.9
        },
        "id": "CVE-2019-15695-ba7ee3da",
        "deprecated": false,
        "target": {
            "file": "common/rfb/PixelFormat.cxx"
        }
    },
    {
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/cendioossman/tigervnc/commit/05e28490873a861379c943bf616614b78b558b89",
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            "threshold": 0.9
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        "id": "CVE-2019-15695-d82c26bd",
        "deprecated": false,
        "target": {
            "file": "tests/unit/pixelformat.cxx"
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    },
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        "signature_type": "Function",
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        "target": {
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]

Git / github.com/tigervnc/tigervnc