Medium
Security advisory
libfreerdp/gdi/region.c in FreeRDP versions > 1.0 through 2.0.0-rc4 has an Integer Overflow.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-11523
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 10:48 UTC · Revision 1
Source evidence
libfreerdp/gdi/region.c in FreeRDP versions > 1.0 through 2.0.0-rc4 has an Integer Overflow.
osv:CVE-2020-11523
Complete source record
{
"id": "8b914d510b82c733730ff71bf27a01ec6e452dc67360157fecf13cfb302f7f19",
"url": "https://osv.dev/vulnerability/CVE-2020-11523",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-11523",
"summary": "libfreerdp/gdi/region.c in FreeRDP versions > 1.0 through 2.0.0-rc4 has an Integer Overflow.",
"evidence": "osv:CVE-2020-11523",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2020-11523",
"aliases": [
"CVE-2020-11523",
"GHSA-4qrh-8cp8-4x42"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/freerdp/freerdp",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "5ab2bed8749747b8e4b2ed431fd102bc726be684"
},
{
"introduced": "5ab2bed8749747b8e4b2ed431fd102bc726be684"
},
{
"last_affected": "e21b72c95f857817b4b32b5ef5406355c005a9e8"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "2.0.0"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:freerdp:freerdp:2.0.0:-:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.0-NA"
},
{
"last_affected": "2.0.0-NA"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:freerdp:freerdp:2.0.0:rc0:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.0-rc0"
},
{
"last_affected": "2.0.0-rc0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:freerdp:freerdp:2.0.0:rc1:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.0-rc1"
},
{
"last_affected": "2.0.0-rc1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:freerdp:freerdp:2.0.0:rc2:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.0-rc2"
},
{
"last_affected": "2.0.0-rc2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:freerdp:freerdp:2.0.0:rc3:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.0-rc3"
},
{
"last_affected": "2.0.0-rc3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:freerdp:freerdp:2.0.0:rc4:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.0-rc4"
},
{
"last_affected": "2.0.0-rc4"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"2.0.0-NA",
"2.0.0-rc0",
"2.0.0-rc1",
"2.0.0-rc2",
"2.0.0-rc3",
"2.0.0-rc4",
"2.0.0-beta1+android11",
"2.0.0-beta1+android10",
"1.2.0-beta1+android9",
"1.2.0-beta1+android7",
"1.1.0-beta+2013071101",
"1.1.0-beta1+ios4",
"1.1.0-beta1+android5",
"1.1.0-beta1+android4",
"1.1.0-beta1+ios3",
"1.1.0-beta1+ios2",
"1.1.0-beta1+android3",
"1.1.0-beta1+android2",
"1.1.0-beta1+ios1",
"1.1.0-beta1",
"1.0.1",
"1.0.0",
"1.0-beta5",
"1.0-beta4",
"1.0-beta2",
"1.0-beta1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-11523.json"
}
}
],
"modified": "2026-10-20T10:51:45.911100822Z",
"provider": "osv",
"references": [
"https://lists.debian.org/debian-lts-announce/2020/08/msg00054.html",
"https://usn.ubuntu.com/4379-1/",
"https://usn.ubuntu.com/4382-1/",
"https://github.com/FreeRDP/FreeRDP/commits/master",
"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-4qrh-8cp8-4x42",
"https://pub.freerdp.com/cve/CVE-2020-11523/pocAnalysis_2.pdf"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*"
],
"vendor_product": "canonical:ubuntu_linux",
"extracted_events": [
{
"range": [
{
"introduced": "16.04"
},
{
"last_affected": "16.04"
},
{
"introduced": "18.04"
},
{
"last_affected": "18.04"
},
{
"introduced": "19.10"
},
{
"last_affected": "19.10"
},
{
"introduced": "20.04"
},
{
"last_affected": "20.04"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "9.0"
},
{
"last_affected": "9.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*"
],
"vendor_product": "opensuse:leap",
"extracted_events": [
{
"range": [
{
"introduced": "15.1"
},
{
"last_affected": "15.1"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2020-11523",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 382893,
"published_at": "2020-05-15T17:15:11.907+00:00"
}