Medium
Security advisory
In FreeRDP greater than 1.1 and before 2.0.0, there is an out-of-bounds read in update_read_icon_info. It allows reading a attacker-defined amount of client memory (32bit unsigned -> 4GB) to an intermediate buffer. This can be used to crash the client or store information for later retrieval. This has been patched in 2.0.0.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-11042
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:29 UTC · Revision 1
Source evidence
In FreeRDP greater than 1.1 and before 2.0.0, there is an out-of-bounds read in update_read_icon_info. It allows reading a attacker-defined amount of client memory (32bit unsigned -> 4GB) to an intermediate buffer. This can be used to crash the client or store information for later retrieval. This has been patched in 2.0.0.
osv:CVE-2020-11042
Complete source record
{
"id": "f7d848d1e105f346e9480b5b21dda91fce3c148ff1f07155d3f7a520dccb1f21",
"url": "https://osv.dev/vulnerability/CVE-2020-11042",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-11042",
"summary": "In FreeRDP greater than 1.1 and before 2.0.0, there is an out-of-bounds read in update_read_icon_info. It allows reading a attacker-defined amount of client memory (32bit unsigned -> 4GB) to an intermediate buffer. This can be used to crash the client or store information for later retrieval. This has been patched in 2.0.0.",
"evidence": "osv:CVE-2020-11042",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2020-11042",
"aliases": [
"CVE-2020-11042",
"GHSA-9jp6-5vf2-cx2q"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/freerdp/freerdp",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "5ab2bed8749747b8e4b2ed431fd102bc726be684"
},
{
"fixed": "6b2bc41935e53b0034fe5948aeeab4f32e80f30f"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "2.0.0"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "6b2bc41935e53b0034fe5948aeeab4f32e80f30f"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"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-2020-11042.json",
"vanir_signatures": [
{
"id": "CVE-2020-11042-707d3e28",
"digest": {
"threshold": 0.9,
"line_hashes": [
"245478157580288077938691969241514640113",
"144995747847440394927948987958498610748",
"27374538333814787306478926356152992207",
"72880984689149188431470676440037075942",
"143640985412955185735086451262812126366",
"159128610546257402970072929139224016648",
"257177602020746093006188546336652873362",
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"10797477995769194668121582849593184147",
"89381222229867756753414698960546182383",
"24418834961216616411511276962128611998",
"210095314259370799883337283356498697225",
"141744073931953096778815602644023320502",
"163415568604845025164965635016105576448",
"283169427131773299703586695811719715197",
"20928499872173637578828929195863500753",
"96505305098348535455499397921450666604",
"163683026081918108688454203231968386637"
]
},
"source": "https://github.com/freerdp/freerdp/commit/6b2bc41935e53b0034fe5948aeeab4f32e80f30f",
"target": {
"file": "libfreerdp/core/window.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
},
{
"id": "CVE-2020-11042-c483461f",
"digest": {
"length": 2007,
"function_hash": "276930435688057764514499941329299433229"
},
"source": "https://github.com/freerdp/freerdp/commit/6b2bc41935e53b0034fe5948aeeab4f32e80f30f",
"target": {
"file": "libfreerdp/core/window.c",
"function": "update_read_icon_info"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-20T13:44:53Z"
}
}
],
"modified": "2026-10-20T13:44:53.270923478Z",
"provider": "osv",
"references": [
"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-9jp6-5vf2-cx2q",
"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/commit/6b2bc41935e53b0034fe5948aeeab4f32e80f30f",
"https://lists.debian.org/debian-lts-announce/2023/10/msg00008.html",
"https://github.com/FreeRDP/FreeRDP/issues/6010"
],
"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:10.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "9.0"
},
{
"last_affected": "9.0"
},
{
"introduced": "10.0"
},
{
"last_affected": "10.0"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2020-11042",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 388014,
"published_at": "2020-05-07T19:15:11.673+00:00"
}