CVE-2020-4033

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Source
https://nvd.nist.gov/vuln/detail/CVE-2020-4033
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-4033.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-4033
Downstream
Related
Published
2020-06-22T22:15:13Z
Modified
2025-10-21T05:54:10.915602Z
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.

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
0a98c450c58ec150e44781c89aa6f8e7e0f571f5

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

Database specific

vanir_signatures

[
    {
        "id": "CVE-2020-4033-3cd1e04d",
        "source": "https://github.com/freerdp/freerdp/commit/0a98c450c58ec150e44781c89aa6f8e7e0f571f5",
        "deprecated": false,
        "signature_version": "v1",
        "signature_type": "Function",
        "digest": {
            "length": 4507.0,
            "function_hash": "94257069752977040341272531883580787369"
        },
        "target": {
            "function": "RLEDECOMPRESS",
            "file": "libfreerdp/codec/include/bitmap.c"
        }
    },
    {
        "id": "CVE-2020-4033-b8667d11",
        "source": "https://github.com/freerdp/freerdp/commit/0a98c450c58ec150e44781c89aa6f8e7e0f571f5",
        "deprecated": false,
        "signature_version": "v1",
        "signature_type": "Line",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
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            ]
        },
        "target": {
            "file": "libfreerdp/codec/include/bitmap.c"
        }
    }
]