CVE catalog

CVE-2020-11018

freerdp2 affected and fixed versions

In FreeRDP less than or equal to 2.0.0, a possible resource exhaustion vulnerability can be performed. Malicious clients could trigger out of bound reads causing memory allocation with random size. This has been fixed in 2.1.0.

Severity: Medium · CVSS 6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Published: Apr 9, 2020, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 1.90% · Oct 27, 2026

Projects and upstream resources

[freerdp3][Source-reported homepage]

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Distribution / release	Package	Version	Status	Source
Debianbookworm	freerdp2	`2.1.1+dfsg1-1`	FixedDistribution-reported fixed boundary	[CVE-2020-11018]
Debianbookworm	freerdp2	`2.11.7+dfsg1-6~deb12u1`	Fixed	[CVE-2020-11018]

Showing 2 fix observations. All 16 observations, including unknown and conflicting reports, are available below.

Provider details and historical evidence

Distribution / release	Package	Version	Status	Source
Debianbookworm	freerdp2	`2.1.1+dfsg1-1`	FixedDistribution-reported fixed boundary	[CVE-2020-11018]
Debianbookworm	freerdp2	`2.11.7+dfsg1-6~deb12u1`	Fixed	[CVE-2020-11018]
Ubuntu18.04	freerdp2	`2.0.0~git20170725.1.1648deb+dfsg1-1`	UnknownSource applicability is not established	[UBUNTU-CVE-2020-11018]Apr 22, 2026, 12:26:15 PM UTC
Ubuntu18.04	freerdp2	`2.0.0~git20170725.1.1648deb+dfsg1-5`	UnknownSource applicability is not established	[UBUNTU-CVE-2020-11018]Apr 22, 2026, 12:26:15 PM UTC
Ubuntu18.04	freerdp2	`2.0.0~git20170725.1.1648deb+dfsg1-5ubuntu1`	UnknownSource applicability is not established	[UBUNTU-CVE-2020-11018]Apr 22, 2026, 12:26:15 PM UTC
Ubuntu18.04	freerdp2	`2.0.0~git20170725.1.1648deb+dfsg1-5ubuntu2`	UnknownSource applicability is not established	[UBUNTU-CVE-2020-11018]Apr 22, 2026, 12:26:15 PM UTC
Ubuntu18.04	freerdp2	`2.0.0~git20170725.1.1648deb+dfsg1-6`	UnknownSource applicability is not established	[UBUNTU-CVE-2020-11018]Apr 22, 2026, 12:26:15 PM UTC
Ubuntu18.04	freerdp2	`2.0.0~git20170725.1.1648deb+dfsg1-6build1`	UnknownSource applicability is not established	[UBUNTU-CVE-2020-11018]Apr 22, 2026, 12:26:15 PM UTC
Ubuntu18.04	freerdp2	`2.0.0~git20170725.1.1648deb+dfsg1-7`	UnknownSource applicability is not established	[UBUNTU-CVE-2020-11018]Apr 22, 2026, 12:26:15 PM UTC
Ubuntu18.04	freerdp2	`2.0.0~git20170725.1.1648deb+dfsg1-7ubuntu0.1`	UnknownSource applicability is not established	[UBUNTU-CVE-2020-11018]Apr 22, 2026, 12:26:15 PM UTC
Ubuntu18.04	freerdp2	`2.1.1+dfsg1-0ubuntu0.18.04.1`	UnknownSource applicability is not established	[UBUNTU-CVE-2020-11018]Apr 22, 2026, 12:26:15 PM UTC
Ubuntu20.04	freerdp2	`2.0.0~git20190204.1.2693389a+dfsg1-1`	UnknownSource applicability is not established	[UBUNTU-CVE-2020-11018]Apr 22, 2026, 12:26:15 PM UTC
Ubuntu20.04	freerdp2	`2.0.0~git20190204.1.2693389a+dfsg1-2`	UnknownSource applicability is not established	[UBUNTU-CVE-2020-11018]Apr 22, 2026, 12:26:15 PM UTC
Ubuntu20.04	freerdp2	`2.0.0~git20190204.1.2693389a+dfsg1-2build1`	UnknownSource applicability is not established	[UBUNTU-CVE-2020-11018]Apr 22, 2026, 12:26:15 PM UTC
Ubuntu20.04	freerdp2	`2.0.0~git20190204.1.2693389a+dfsg1-2build2`	UnknownSource applicability is not established	[UBUNTU-CVE-2020-11018]Apr 22, 2026, 12:26:15 PM UTC
Ubuntu20.04	freerdp2	`2.1.1+dfsg1-0ubuntu0.20.04.1`	UnknownSource applicability is not established	[UBUNTU-CVE-2020-11018]Apr 22, 2026, 12:26:15 PM UTC

Original provider fields

{
  "package_releases": [
    {
      "name": "freerdp2",
      "status": "fixed",
      "release": "bookworm",
      "version": "2.11.7+dfsg1-6~deb12u1"
    }
  ],
  "fixed_versions": [
    {
      "bug": null,
      "name": "freerdp2",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": "2.1.1+dfsg1-1"
    }
  ],
  "distribution_packages": [
    {
      "name": "freerdp2",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.1.1+dfsg1-0ubuntu0.18.04.1"
            }
          ]
        }
      ],
      "release": "18.04",
      "versions": [
        "2.0.0~git20170725.1.1648deb+dfsg1-1",
        "2.0.0~git20170725.1.1648deb+dfsg1-5",
        "2.0.0~git20170725.1.1648deb+dfsg1-5ubuntu1",
        "2.0.0~git20170725.1.1648deb+dfsg1-5ubuntu2",
        "2.0.0~git20170725.1.1648deb+dfsg1-6",
        "2.0.0~git20170725.1.1648deb+dfsg1-6build1",
        "2.0.0~git20170725.1.1648deb+dfsg1-7",
        "2.0.0~git20170725.1.1648deb+dfsg1-7ubuntu0.1"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2020-11018",
      "fixed_version": "2.1.1+dfsg1-0ubuntu0.18.04.1",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2020-11018",
      "provider_updated_at": "2026-04-22T12:26:15.202210Z",
      "applicability_unknown": true
    },
    {
      "name": "freerdp2",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.1.1+dfsg1-0ubuntu0.20.04.1"
            }
          ]
        }
      ],
      "release": "20.04",
      "versions": [
        "2.0.0~git20190204.1.2693389a+dfsg1-1",
        "2.0.0~git20190204.1.2693389a+dfsg1-2",
        "2.0.0~git20190204.1.2693389a+dfsg1-2build1",
        "2.0.0~git20190204.1.2693389a+dfsg1-2build2"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2020-11018",
      "fixed_version": "2.1.1+dfsg1-0ubuntu0.20.04.1",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2020-11018",
      "provider_updated_at": "2026-04-22T12:26:15.202210Z",
      "applicability_unknown": true
    }
  ]
}

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[freerdp2-dev]Unknown
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12
[freerdp2-shadow-x11]Unknown
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12
[freerdp2-wayland]Unknown
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12
[freerdp2-x11]Unknown
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12
[libfreerdp2-2]Unknown
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12
[libfreerdp-client2-2]Unknown
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12
[libfreerdp-server2-2]Unknown
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12
[libfreerdp-shadow2-2]Unknown
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12
[libfreerdp-shadow-subsystem2-2]Unknown
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12
[libuwac0-0]Unknown
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12
[libuwac0-dev]Unknown
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12
[libwinpr2-2]Unknown
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12
[libwinpr2-dev]Unknown
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12
[libwinpr-tools2-2]Unknown
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12
[winpr-utils]Unknown
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Fixed · Fixed: 2.1.1+dfsg1-1
  dsa · freerdp2 · debian · bookworm; dsa · freerdp2 · debian · 12

Observed: Oct 23, 2026, 5:46:50 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]