Medium
Security advisory
In FreeRDP before version 2.1.2, there is an out of bounds read in license_read_new_or_upgrade_license_packet. A manipulated license packet can lead to out of bound reads to an internal buffer. This is fixed in version 2.1.2.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-11099
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:33 UTC · Revision 1
Source evidence
In FreeRDP before version 2.1.2, there is an out of bounds read in license_read_new_or_upgrade_license_packet. A manipulated license packet can lead to out of bound reads to an internal buffer. This is fixed in version 2.1.2.
osv:CVE-2020-11099
Complete source record
{
"id": "93b8042bf553e91af3c646d0c2db6771391a8455ee7d5754912e42ca7549ce8e",
"url": "https://osv.dev/vulnerability/CVE-2020-11099",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-11099",
"summary": "In FreeRDP before version 2.1.2, there is an out of bounds read in license_read_new_or_upgrade_license_packet. A manipulated license packet can lead to out of bound reads to an internal buffer. This is fixed in version 2.1.2.",
"evidence": "osv:CVE-2020-11099",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2020-11099",
"aliases": [
"CVE-2020-11099",
"GHSA-977w-866x-4v5h"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/freerdp/freerdp",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "584efae073386e8c5f6bc265b05c87d508a9bcbc"
},
{
"fixed": "6ade7b4cbfd71c54b3d724e8f2d6ac76a58e879a"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "2.1.2"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "6ade7b4cbfd71c54b3d724e8f2d6ac76a58e879a"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"2.1.1",
"2.1.0",
"2.0.0",
"2.0.0-rc4",
"2.0.0-rc3",
"2.0.0-rc2",
"2.0.0-rc1",
"2.0.0-rc0",
"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-2020-11099.json",
"vanir_signatures": [
{
"id": "CVE-2020-11099-32a9881b",
"digest": {
"threshold": 0.9,
"line_hashes": [
"281898718017460842865274888192424252485",
"83058414834778746533741131352962854180",
"241823807449695300903551662545204628159",
"104563044135382114892485080153802132894",
"278816154913480145921262192622640017090",
"26480789416045994852112671328764416839",
"269870899946188939866216373041037959054",
"201285351122475363004377485740462230578",
"267637594190386831000553751936310271035",
"219439559284708563842826948195042537542",
"192134607697367529546078387553987608389",
"326301040129011736875141829600202056014"
]
},
"source": "https://github.com/freerdp/freerdp/commit/6ade7b4cbfd71c54b3d724e8f2d6ac76a58e879a",
"target": {
"file": "libfreerdp/core/license.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
},
{
"id": "CVE-2020-11099-32c5cffe",
"digest": {
"length": 1942,
"function_hash": "260292141331458710674748352587146545953"
},
"source": "https://github.com/freerdp/freerdp/commit/6ade7b4cbfd71c54b3d724e8f2d6ac76a58e879a",
"target": {
"file": "libfreerdp/core/license.c",
"function": "license_read_new_or_upgrade_license_packet"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-20T13:51:18Z"
}
}
],
"modified": "2026-10-20T13:51:18.069198892Z",
"provider": "osv",
"references": [
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6Y35HBHG2INICLSGCIKNAR7GCXEHQACQ/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XOZLH35OJWIQLM7FYDXAP2EAUBDXE76V/",
"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-977w-866x-4v5h",
"https://usn.ubuntu.com/4481-1/",
"https://lists.debian.org/debian-lts-announce/2023/10/msg00008.html",
"https://github.com/FreeRDP/FreeRDP/commit/6ade7b4cbfd71c54b3d724e8f2d6ac76a58e879a"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:esm:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*"
],
"vendor_product": "canonical:ubuntu_linux",
"extracted_events": [
{
"range": [
{
"introduced": "18.04"
},
{
"last_affected": "18.04"
},
{
"introduced": "20.04"
},
{
"last_affected": "20.04"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "10.0"
},
{
"last_affected": "10.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"range": [
{
"introduced": "31"
},
{
"last_affected": "31"
},
{
"introduced": "32"
},
{
"last_affected": "32"
}
],
"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-2020-11099",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 388286,
"published_at": "2020-06-22T22:15:12.273+00:00"
}