UBUNTU-CVE-2021-42762

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Source
https://ubuntu.com/security/CVE-2021-42762
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-42762.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-42762
Upstream
Downstream
Related
Published
2021-10-20T19:15:00Z
Modified
2025-10-24T04:50:36Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

BubblewrapLauncher.cpp in WebKitGTK and WPE WebKit before 2.34.1 allows a limited sandbox bypass that allows a sandboxed process to trick host processes into thinking the sandboxed process is not confined by the sandbox, by abusing VFS syscalls that manipulate its filesystem namespace. The impact is limited to host services that create UNIX sockets that WebKit mounts inside its sandbox, and the sandboxed process remains otherwise confined. NOTE: this is similar to CVE-2021-41133.

References

Affected packages

Ubuntu:16.04:LTS

qtwebkit-opensource-src

Package

Name
qtwebkit-opensource-src
Purl
pkg:deb/ubuntu/qtwebkit-opensource-src@5.5.1+dfsg-2ubuntu1?arch=source&distro=xenial

Affected ranges

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

Affected versions

5.*

5.4.2+dfsg-1ubuntu2.1
5.5.1+dfsg-2ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "5.5.1+dfsg-2ubuntu1",
            "binary_name": "libqt5webkit5"
        },
        {
            "binary_version": "5.5.1+dfsg-2ubuntu1",
            "binary_name": "libqt5webkit5-dev"
        },
        {
            "binary_version": "5.5.1+dfsg-2ubuntu1",
            "binary_name": "libqt5webkit5-qmlwebkitplugin"
        },
        {
            "binary_version": "5.5.1+dfsg-2ubuntu1",
            "binary_name": "qml-module-qtwebkit"
        },
        {
            "binary_version": "5.5.1+dfsg-2ubuntu1",
            "binary_name": "qtwebkit5-doc-html"
        }
    ]
}

webkit2gtk

Package

Name
webkit2gtk
Purl
pkg:deb/ubuntu/webkit2gtk@2.20.5-0ubuntu0.16.04.1?arch=source&distro=xenial

Affected ranges

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

Affected versions

2.*

2.8.5+dfsg1-3
2.10.3+dfsg1-1
2.10.4+dfsg1-1
2.10.5-1
2.10.6-1
2.10.6-1ubuntu1
2.10.8-1ubuntu1
2.10.9-1ubuntu1
2.12.5-0ubuntu0.16.04.1
2.14.2-0ubuntu0.16.04.1
2.14.3-0ubuntu0.16.04.1
2.14.5-0ubuntu0.16.04.1
2.16.1-0ubuntu0.16.04.1
2.16.1-0ubuntu0.16.04.2
2.16.2-0ubuntu0.16.04.1
2.16.3-0ubuntu0.16.04.1
2.16.6-0ubuntu0.16.04.1
2.18.0-0ubuntu0.16.04.2
2.18.3-0ubuntu0.16.04.1
2.18.4-0ubuntu0.16.04.1
2.18.5-0ubuntu0.16.04.1
2.18.6-0ubuntu0.16.04.1
2.20.1-0ubuntu0.16.04.1
2.20.2-0ubuntu0.16.04.1
2.20.3-0ubuntu0.16.04.1
2.20.5-0ubuntu0.16.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.20.5-0ubuntu0.16.04.1",
            "binary_name": "gir1.2-javascriptcoregtk-4.0"
        },
        {
            "binary_version": "2.20.5-0ubuntu0.16.04.1",
            "binary_name": "gir1.2-webkit2-4.0"
        },
        {
            "binary_version": "2.20.5-0ubuntu0.16.04.1",
            "binary_name": "libjavascriptcoregtk-4.0-18"
        },
        {
            "binary_version": "2.20.5-0ubuntu0.16.04.1",
            "binary_name": "libjavascriptcoregtk-4.0-bin"
        },
        {
            "binary_version": "2.20.5-0ubuntu0.16.04.1",
            "binary_name": "libjavascriptcoregtk-4.0-dev"
        },
        {
            "binary_version": "2.20.5-0ubuntu0.16.04.1",
            "binary_name": "libwebkit2gtk-4.0-37"
        },
        {
            "binary_version": "2.20.5-0ubuntu0.16.04.1",
            "binary_name": "libwebkit2gtk-4.0-37-gtk2"
        },
        {
            "binary_version": "2.20.5-0ubuntu0.16.04.1",
            "binary_name": "libwebkit2gtk-4.0-dev"
        }
    ]
}

qtwebkit-source

Package

Name
qtwebkit-source
Purl
pkg:deb/ubuntu/qtwebkit-source@2.3.2-0ubuntu11?arch=source&distro=xenial

Affected ranges

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

Affected versions

2.*

2.3.2-0ubuntu10
2.3.2-0ubuntu11

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.3.2-0ubuntu11",
            "binary_name": "libqtwebkit-dev"
        },
        {
            "binary_version": "2.3.2-0ubuntu11",
            "binary_name": "libqtwebkit-qmlwebkitplugin"
        },
        {
            "binary_version": "2.3.2-0ubuntu11",
            "binary_name": "libqtwebkit4"
        }
    ]
}

webkitgtk

Package

Name
webkitgtk
Purl
pkg:deb/ubuntu/webkitgtk@2.4.11-0ubuntu0.1?arch=source&distro=xenial

Affected ranges

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

Affected versions

2.*

2.4.9-2ubuntu2
2.4.10-0ubuntu1
2.4.11-0ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.4.11-0ubuntu0.1",
            "binary_name": "gir1.2-javascriptcoregtk-3.0"
        },
        {
            "binary_version": "2.4.11-0ubuntu0.1",
            "binary_name": "gir1.2-webkit-3.0"
        },
        {
            "binary_version": "2.4.11-0ubuntu0.1",
            "binary_name": "gir1.2-webkit2-3.0"
        },
        {
            "binary_version": "2.4.11-0ubuntu0.1",
            "binary_name": "libjavascriptcoregtk-1.0-0"
        },
        {
            "binary_version": "2.4.11-0ubuntu0.1",
            "binary_name": "libjavascriptcoregtk-1.0-dev"
        },
        {
            "binary_version": "2.4.11-0ubuntu0.1",
            "binary_name": "libjavascriptcoregtk-3.0-0"
        },
        {
            "binary_version": "2.4.11-0ubuntu0.1",
            "binary_name": "libjavascriptcoregtk-3.0-bin"
        },
        {
            "binary_version": "2.4.11-0ubuntu0.1",
            "binary_name": "libjavascriptcoregtk-3.0-dev"
        },
        {
            "binary_version": "2.4.11-0ubuntu0.1",
            "binary_name": "libwebkit-dev"
        },
        {
            "binary_version": "2.4.11-0ubuntu0.1",
            "binary_name": "libwebkit2gtk-3.0-25"
        },
        {
            "binary_version": "2.4.11-0ubuntu0.1",
            "binary_name": "libwebkit2gtk-3.0-dev"
        },
        {
            "binary_version": "2.4.11-0ubuntu0.1",
            "binary_name": "libwebkitgtk-1.0-0"
        },
        {
            "binary_version": "2.4.11-0ubuntu0.1",
            "binary_name": "libwebkitgtk-1.0-common"
        },
        {
            "binary_version": "2.4.11-0ubuntu0.1",
            "binary_name": "libwebkitgtk-3.0-0"
        },
        {
            "binary_version": "2.4.11-0ubuntu0.1",
            "binary_name": "libwebkitgtk-3.0-common"
        },
        {
            "binary_version": "2.4.11-0ubuntu0.1",
            "binary_name": "libwebkitgtk-3.0-dev"
        },
        {
            "binary_version": "2.4.11-0ubuntu0.1",
            "binary_name": "libwebkitgtk-common-dev"
        },
        {
            "binary_version": "2.4.11-0ubuntu0.1",
            "binary_name": "libwebkitgtk-dev"
        }
    ]
}

Ubuntu:18.04:LTS

qtwebkit-opensource-src

Package

Name
qtwebkit-opensource-src
Purl
pkg:deb/ubuntu/qtwebkit-opensource-src@5.212.0~alpha2-7ubuntu1?arch=source&distro=bionic

Affected ranges

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

Affected versions

5.*

5.9.1+dfsg-5ubuntu1
5.9.1+dfsg-5ubuntu3
5.212.0~alpha2-5build2
5.212.0~alpha2-5build4
5.212.0~alpha2-7
5.212.0~alpha2-7build2
5.212.0~alpha2-7ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "5.212.0~alpha2-7ubuntu1",
            "binary_name": "libqt5webkit5"
        },
        {
            "binary_version": "5.212.0~alpha2-7ubuntu1",
            "binary_name": "libqt5webkit5-dev"
        },
        {
            "binary_version": "5.212.0~alpha2-7ubuntu1",
            "binary_name": "qml-module-qtwebkit"
        },
        {
            "binary_version": "5.212.0~alpha2-7ubuntu1",
            "binary_name": "qtwebkit5-doc-html"
        }
    ]
}

qtwebkit-source

Package

Name
qtwebkit-source
Purl
pkg:deb/ubuntu/qtwebkit-source@2.3.2-0ubuntu13?arch=source&distro=bionic

Affected ranges

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

Affected versions

2.*

2.3.2-0ubuntu13

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.3.2-0ubuntu13",
            "binary_name": "libqtwebkit-dev"
        },
        {
            "binary_version": "2.3.2-0ubuntu13",
            "binary_name": "libqtwebkit-qmlwebkitplugin"
        },
        {
            "binary_version": "2.3.2-0ubuntu13",
            "binary_name": "libqtwebkit4"
        }
    ]
}

webkitgtk

Package

Name
webkitgtk
Purl
pkg:deb/ubuntu/webkitgtk@2.4.11-3ubuntu3?arch=source&distro=bionic

Affected ranges

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

Affected versions

2.*

2.4.11-3
2.4.11-3ubuntu2
2.4.11-3ubuntu3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.4.11-3ubuntu3",
            "binary_name": "gir1.2-javascriptcoregtk-3.0"
        },
        {
            "binary_version": "2.4.11-3ubuntu3",
            "binary_name": "gir1.2-webkit-3.0"
        },
        {
            "binary_version": "2.4.11-3ubuntu3",
            "binary_name": "libjavascriptcoregtk-1.0-0"
        },
        {
            "binary_version": "2.4.11-3ubuntu3",
            "binary_name": "libjavascriptcoregtk-1.0-dev"
        },
        {
            "binary_version": "2.4.11-3ubuntu3",
            "binary_name": "libjavascriptcoregtk-3.0-0"
        },
        {
            "binary_version": "2.4.11-3ubuntu3",
            "binary_name": "libjavascriptcoregtk-3.0-bin"
        },
        {
            "binary_version": "2.4.11-3ubuntu3",
            "binary_name": "libjavascriptcoregtk-3.0-dev"
        },
        {
            "binary_version": "2.4.11-3ubuntu3",
            "binary_name": "libwebkitgtk-1.0-0"
        },
        {
            "binary_version": "2.4.11-3ubuntu3",
            "binary_name": "libwebkitgtk-3.0-0"
        },
        {
            "binary_version": "2.4.11-3ubuntu3",
            "binary_name": "libwebkitgtk-3.0-dev"
        },
        {
            "binary_version": "2.4.11-3ubuntu3",
            "binary_name": "libwebkitgtk-dev"
        }
    ]
}

Ubuntu:20.04:LTS

webkit2gtk

Package

Name
webkit2gtk
Purl
pkg:deb/ubuntu/webkit2gtk@2.34.1-0ubuntu0.20.04.1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.34.1-0ubuntu0.20.04.1

Affected versions

2.*

2.26.1-3
2.26.2-1
2.26.3-1ubuntu2
2.26.4-1ubuntu1
2.28.0-1ubuntu2
2.28.1-1
2.28.2-0ubuntu0.20.04.1
2.28.3-0ubuntu0.20.04.1
2.28.4-0ubuntu0.20.04.1
2.30.3-0ubuntu0.20.04.1
2.30.5-0ubuntu0.20.04.1
2.30.6-0ubuntu0.20.04.1
2.32.0-0ubuntu0.20.04.1
2.32.3-0ubuntu0.20.04.1
2.32.4-0ubuntu0.20.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.34.1-0ubuntu0.20.04.1",
            "binary_name": "gir1.2-javascriptcoregtk-4.0"
        },
        {
            "binary_version": "2.34.1-0ubuntu0.20.04.1",
            "binary_name": "gir1.2-webkit2-4.0"
        },
        {
            "binary_version": "2.34.1-0ubuntu0.20.04.1",
            "binary_name": "libjavascriptcoregtk-4.0-18"
        },
        {
            "binary_version": "2.34.1-0ubuntu0.20.04.1",
            "binary_name": "libjavascriptcoregtk-4.0-bin"
        },
        {
            "binary_version": "2.34.1-0ubuntu0.20.04.1",
            "binary_name": "libjavascriptcoregtk-4.0-dev"
        },
        {
            "binary_version": "2.34.1-0ubuntu0.20.04.1",
            "binary_name": "libwebkit2gtk-4.0-37"
        },
        {
            "binary_version": "2.34.1-0ubuntu0.20.04.1",
            "binary_name": "libwebkit2gtk-4.0-37-gtk2"
        },
        {
            "binary_version": "2.34.1-0ubuntu0.20.04.1",
            "binary_name": "libwebkit2gtk-4.0-dev"
        },
        {
            "binary_version": "2.34.1-0ubuntu0.20.04.1",
            "binary_name": "webkit2gtk-driver"
        }
    ],
    "availability": "No subscription required"
}

qtwebkit-opensource-src

Package

Name
qtwebkit-opensource-src
Purl
pkg:deb/ubuntu/qtwebkit-opensource-src@5.212.0~alpha4-1ubuntu2.1?arch=source&distro=focal

Affected ranges

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

Affected versions

5.*

5.212.0~alpha3-3
5.212.0~alpha3-5
5.212.0~alpha3-6
5.212.0~alpha3-7
5.212.0~alpha4-1
5.212.0~alpha4-1ubuntu1
5.212.0~alpha4-1ubuntu2
5.212.0~alpha4-1ubuntu2.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "5.212.0~alpha4-1ubuntu2.1",
            "binary_name": "libqt5webkit5"
        },
        {
            "binary_version": "5.212.0~alpha4-1ubuntu2.1",
            "binary_name": "libqt5webkit5-dev"
        },
        {
            "binary_version": "5.212.0~alpha4-1ubuntu2.1",
            "binary_name": "qml-module-qtwebkit"
        }
    ]
}

wpewebkit

Package

Name
wpewebkit
Purl
pkg:deb/ubuntu/wpewebkit@2.28.1-1?arch=source&distro=focal

Affected ranges

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

Affected versions

2.*

2.26.3-1
2.26.4-1
2.26.4-1build1
2.28.0-1
2.28.1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.28.1-1",
            "binary_name": "libwpewebkit-1.0-3"
        },
        {
            "binary_version": "2.28.1-1",
            "binary_name": "libwpewebkit-1.0-dev"
        },
        {
            "binary_version": "2.28.1-1",
            "binary_name": "wpewebkit-driver"
        }
    ]
}

Ubuntu:22.04:LTS

qtwebkit-opensource-src

Package

Name
qtwebkit-opensource-src
Purl
pkg:deb/ubuntu/qtwebkit-opensource-src@5.212.0~alpha4-15ubuntu1?arch=source&distro=jammy

Affected ranges

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

Affected versions

5.*

5.212.0~alpha4-12
5.212.0~alpha4-13
5.212.0~alpha4-14
5.212.0~alpha4-14build1
5.212.0~alpha4-14ubuntu2
5.212.0~alpha4-15ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "5.212.0~alpha4-15ubuntu1",
            "binary_name": "libqt5webkit5"
        },
        {
            "binary_version": "5.212.0~alpha4-15ubuntu1",
            "binary_name": "libqt5webkit5-dev"
        },
        {
            "binary_version": "5.212.0~alpha4-15ubuntu1",
            "binary_name": "qml-module-qtwebkit"
        }
    ]
}

webkit2gtk

Package

Name
webkit2gtk
Purl
pkg:deb/ubuntu/webkit2gtk@2.34.1-1ubuntu1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.34.1-1ubuntu1

Affected versions

2.*

2.34.0-1ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.34.1-1ubuntu1",
            "binary_name": "gir1.2-javascriptcoregtk-4.0"
        },
        {
            "binary_version": "2.34.1-1ubuntu1",
            "binary_name": "gir1.2-webkit2-4.0"
        },
        {
            "binary_version": "2.34.1-1ubuntu1",
            "binary_name": "libjavascriptcoregtk-4.0-18"
        },
        {
            "binary_version": "2.34.1-1ubuntu1",
            "binary_name": "libjavascriptcoregtk-4.0-bin"
        },
        {
            "binary_version": "2.34.1-1ubuntu1",
            "binary_name": "libjavascriptcoregtk-4.0-dev"
        },
        {
            "binary_version": "2.34.1-1ubuntu1",
            "binary_name": "libwebkit2gtk-4.0-37"
        },
        {
            "binary_version": "2.34.1-1ubuntu1",
            "binary_name": "libwebkit2gtk-4.0-dev"
        },
        {
            "binary_version": "2.34.1-1ubuntu1",
            "binary_name": "webkit2gtk-driver"
        }
    ],
    "availability": "No subscription required"
}

wpewebkit

Package

Name
wpewebkit
Purl
pkg:deb/ubuntu/wpewebkit@2.36.0-2ubuntu3?arch=source&distro=jammy

Affected ranges

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

Affected versions

2.*

2.32.4-1
2.34.1-1
2.34.2-1
2.34.3-1
2.34.4-1
2.34.5-1
2.34.6-1
2.36.0-2ubuntu2
2.36.0-2ubuntu3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.36.0-2ubuntu3",
            "binary_name": "libwpewebkit-1.0-3"
        },
        {
            "binary_version": "2.36.0-2ubuntu3",
            "binary_name": "libwpewebkit-1.0-dev"
        },
        {
            "binary_version": "2.36.0-2ubuntu3",
            "binary_name": "wpewebkit-driver"
        }
    ]
}

Ubuntu:24.04:LTS

qtwebkit-opensource-src

Package

Name
qtwebkit-opensource-src
Purl
pkg:deb/ubuntu/qtwebkit-opensource-src@5.212.0~alpha4-36?arch=source&distro=noble

Affected ranges

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

Affected versions

5.*

5.212.0~alpha4-33
5.212.0~alpha4-33build1
5.212.0~alpha4-34
5.212.0~alpha4-34ubuntu3
5.212.0~alpha4-34ubuntu4
5.212.0~alpha4-36

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "5.212.0~alpha4-36",
            "binary_name": "libqt5webkit5"
        },
        {
            "binary_version": "5.212.0~alpha4-36",
            "binary_name": "libqt5webkit5-dev"
        },
        {
            "binary_version": "5.212.0~alpha4-36",
            "binary_name": "qml-module-qtwebkit"
        }
    ]
}