CVE-2020-4031

In FreeRDP before version 2.1.2, there is a use-after-free in gdi_SelectObject. All FreeRDP clients using compatibility mode with /relax-order-checks are affected. This is fixed in version 2.1.2.

References

Affected packages

Git / github.com/freerdp/freerdp

Affected ranges

Type

GIT

Repo

https://github.com/freerdp/freerdp

Events

Introduced

Fixed

584efae073386e8c5f6bc265b05c87d508a9bcbc

Fixed

6d86e20e1e7caaab4f0c7f89e36d32914dbccc52

Database specific

{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.1.2"
        }
    ]
}

Affected versions

1.*

1.0-beta1

1.0-beta2

1.0-beta3

1.0-beta4

1.0-beta5

1.0.0

1.0.1

1.1.0-beta+2013071101

1.1.0-beta1

1.1.0-beta1+android2

1.1.0-beta1+android3

1.1.0-beta1+android4

1.1.0-beta1+android5

1.1.0-beta1+ios1

1.1.0-beta1+ios2

1.1.0-beta1+ios3

1.1.0-beta1+ios4

1.2.0-beta1+android7

1.2.0-beta1+android9

2.*

2.0.0

2.0.0-beta1+android10

2.0.0-beta1+android11

2.0.0-rc0

2.0.0-rc1

2.0.0-rc2

2.0.0-rc3

2.0.0-rc4

2.1.0

2.1.1

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-4031.json"

unresolved_ranges

[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "31"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "32"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "15.1"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "18.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "20.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.0"
            }
        ]
    }
]

vanir_signatures

[
    {
        "deprecated": false,
        "id": "CVE-2020-4031-6d8a4e80",
        "signature_type": "Line",
        "digest": {
            "line_hashes": [
                "206824409836018329107931826041728959867",
                "260941141889332641186153920543010721710",
                "244372807494333150934362210269961780669",
                "11220332270728209492738135928567876790",
                "109709125800227540552630846963918169160",
                "280502749591609004556720326341572702766",
                "272391707204034853583769809678780120114",
                "153041246365193990729603684708156713072",
                "297327554412935137345118440425799656686",
                "234476187276609072557850772052902601274",
                "320116423252867463164242454449601887554"
            ],
            "threshold": 0.9
        },
        "signature_version": "v1",
        "target": {
            "file": "server/shadow/shadow_server.c"
        },
        "source": "https://github.com/freerdp/freerdp/commit/6d86e20e1e7caaab4f0c7f89e36d32914dbccc52"
    },
    {
        "deprecated": false,
        "id": "CVE-2020-4031-71f28b03",
        "signature_type": "Function",
        "digest": {
            "length": 1409.0,
            "function_hash": "327365352117490775117547188598520203541"
        },
        "signature_version": "v1",
        "target": {
            "function": "shadow_server_start",
            "file": "server/shadow/shadow_server.c"
        },
        "source": "https://github.com/freerdp/freerdp/commit/6d86e20e1e7caaab4f0c7f89e36d32914dbccc52"
    }
]