CVE-2020-4033

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Source
https://cve.org/CVERecord?id=CVE-2020-4033
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-4033.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2020-4033
Aliases
  • GHSA-7rhj-856w-82p8
Downstream
Related
Published
2020-06-22T22:15:13.353Z
Modified
2026-07-09T07:51:01.104376Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L CVSS Calculator
Summary
[none]
Details

In FreeRDP before version 2.1.2, there is an out of bounds read in RLEDECOMPRESS. All FreeRDP based clients with sessions with color depth < 32 are affected. This is fixed in version 2.1.2.

Database specific 
{
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "18.04"
                },
                {
                    "last_affected": "18.04"
                },
                {
                    "introduced": "20.04"
                },
                {
                    "last_affected": "20.04"
                }
            ],
            "vendor_product": "canonical:ubuntu_linux",
            "source": "CPE_STRING",
            "cpes": [
                "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:esm:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*"
            ]
        },
        {
            "extracted_events": [
                {
                    "introduced": "10.0"
                },
                {
                    "last_affected": "10.0"
                }
            ],
            "vendor_product": "debian:debian_linux",
            "source": "CPE_STRING",
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*"
            ]
        },
        {
            "extracted_events": [
                {
                    "introduced": "31"
                },
                {
                    "last_affected": "31"
                },
                {
                    "introduced": "32"
                },
                {
                    "last_affected": "32"
                }
            ],
            "vendor_product": "fedoraproject:fedora",
            "source": "CPE_STRING",
            "cpes": [
                "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*",
                "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*"
            ]
        },
        {
            "extracted_events": [
                {
                    "introduced": "15.1"
                },
                {
                    "last_affected": "15.1"
                }
            ],
            "vendor_product": "opensuse:leap",
            "source": "CPE_STRING",
            "cpes": [
                "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*"
            ]
        }
    ]
}
References

Affected packages

Git / github.com/freerdp/freerdp

Affected ranges

Type
GIT
Repo
https://github.com/freerdp/freerdp
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
584efae073386e8c5f6bc265b05c87d508a9bcbc
Fixed
0a98c450c58ec150e44781c89aa6f8e7e0f571f5
Database specific 
{
    "cpe": "cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.1.2"
        }
    ],
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

1.*
1.0-beta1
1.0-beta2
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

vanir_signatures 
[
    {
        "id": "CVE-2020-4033-3cd1e04d",
        "source": "https://github.com/freerdp/freerdp/commit/0a98c450c58ec150e44781c89aa6f8e7e0f571f5",
        "signature_type": "Function",
        "target": {
            "file": "libfreerdp/codec/include/bitmap.c",
            "function": "RLEDECOMPRESS"
        },
        "signature_version": "v1",
        "digest": {
            "function_hash": "94257069752977040341272531883580787369",
            "length": 4507.0
        },
        "deprecated": false
    },
    {
        "id": "CVE-2020-4033-b8667d11",
        "source": "https://github.com/freerdp/freerdp/commit/0a98c450c58ec150e44781c89aa6f8e7e0f571f5",
        "signature_type": "Line",
        "target": {
            "file": "libfreerdp/codec/include/bitmap.c"
        },
        "signature_version": "v1",
        "digest": {
            "line_hashes": [
                "39066945076943679846899881374503470567",
                "236360246893272756327673369714219300594",
                "303072552976781912056663844091381197478",
                "293101074181156110045527393670316470852",
                "26103867433618001109866561315132363417",
                "59463764602416359621987257370194610988",
                "133926517239065278553257719413163608361",
                "204282032633232275493298484655307215424",
                "321749008865553814556823830518696463922",
                "137304051175667516453654756671465560297",
                "335363998141943889315488190711647841322",
                "330507889033086119582898249029913691785",
                "133926517239065278553257719413163608361",
                "297258688963073114724819441908903814554",
                "129912079427290320704623242374214830006",
                "45854654747860260671680040004049018895",
                "35369803322128794775560581700219326843",
                "171162864366741136671138242120368466636",
                "32843778905422824152611737245177932421",
                "93051036519504234057740809413660568627",
                "300239225307197318179262946557036985161"
            ],
            "threshold": 0.9
        },
        "deprecated": false
    }
]
source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-4033.json"
vanir_signatures_modified 
"2026-07-09T07:51:01Z"