UBUNTU-CVE-2021-36773

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Source
https://ubuntu.com/security/CVE-2021-36773
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-36773.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2021-36773
Upstream
Published
2021-07-18T04:15:00Z
Modified
2025-09-08T16:47:15Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

uBlock Origin before 1.36.2 and nMatrix before 4.4.9 support an arbitrary depth of parameter nesting for strict blocking, which allows crafted web sites to cause a denial of service (unbounded recursion that can trigger memory consumption and a loss of all blocking functionality).

References

Affected packages

Ubuntu:Pro:16.04:LTS / ublock-origin

Package

Name
ublock-origin
Purl
pkg:deb/ubuntu/ublock-origin@1.6.6+dfsg-1?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.5.6+dfsg-1
1.6.0+dfsg-1
1.6.6+dfsg-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.6.6+dfsg-1",
            "binary_name": "xul-ext-ublock-origin"
        }
    ]
}

Ubuntu:Pro:18.04:LTS / ublock-origin

Package

Name
ublock-origin
Purl
pkg:deb/ubuntu/ublock-origin@1.13.8+dfsg-1?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.13.8+dfsg-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.13.8+dfsg-1",
            "binary_name": "chromium-ublock-origin"
        },
        {
            "binary_version": "1.13.8+dfsg-1",
            "binary_name": "xul-ext-ublock-origin"
        }
    ]
}

Ubuntu:Pro:20.04:LTS / ublock-origin

Package

Name
ublock-origin
Purl
pkg:deb/ubuntu/ublock-origin@1.22.2+dfsg-1?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.19.0+dfsg-2
1.22.2+dfsg-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.22.2+dfsg-1",
            "binary_name": "chromium-ublock-origin"
        },
        {
            "binary_version": "1.22.2+dfsg-1",
            "binary_name": "webext-ublock-origin"
        },
        {
            "binary_version": "1.22.2+dfsg-1",
            "binary_name": "xul-ext-ublock-origin"
        }
    ]
}

Ubuntu:Pro:20.04:LTS / umatrix

Package

Name
umatrix
Purl
pkg:deb/ubuntu/umatrix@1.3.16+dfsg-2?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.3.16+dfsg-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.3.16+dfsg-2",
            "binary_name": "webext-umatrix"
        }
    ]
}

Ubuntu:22.04:LTS / ublock-origin

Package

Name
ublock-origin
Purl
pkg:deb/ubuntu/ublock-origin@1.40.2+dfsg-1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.33.0+dfsg-1build1
1.37.0+dfsg-1
1.39.0+dfsg-2
1.40.2+dfsg-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.40.2+dfsg-1",
            "binary_name": "webext-ublock-origin"
        },
        {
            "binary_version": "1.40.2+dfsg-1",
            "binary_name": "webext-ublock-origin-chromium"
        },
        {
            "binary_version": "1.40.2+dfsg-1",
            "binary_name": "webext-ublock-origin-firefox"
        }
    ]
}

Ubuntu:22.04:LTS / umatrix

Package

Name
umatrix
Purl
pkg:deb/ubuntu/umatrix@1.4.0+dfsg-1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.4.0+dfsg-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.4.0+dfsg-1",
            "binary_name": "webext-umatrix"
        }
    ]
}

Ubuntu:24.04:LTS / ublock-origin

Package

Name
ublock-origin
Purl
pkg:deb/ubuntu/ublock-origin@1.55.0+dfsg-1?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.51.0+dfsg-2
1.52.0+dfsg-1
1.53.3rc0+dfsg-1
1.54.0+dfsg-1
1.55.0+dfsg-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.55.0+dfsg-1",
            "binary_name": "webext-ublock-origin-chromium"
        },
        {
            "binary_version": "1.55.0+dfsg-1",
            "binary_name": "webext-ublock-origin-firefox"
        }
    ]
}