UBUNTU-CVE-2021-27803

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Source
https://ubuntu.com/security/CVE-2021-27803
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-27803.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-27803
Upstream
Downstream
Related
Published
2021-02-26T23:15:00Z
Modified
2025-07-16T07:19:47.397914Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A vulnerability was discovered in how p2p/p2ppd.c in wpasupplicant before 2.10 processes P2P (Wi-Fi Direct) provision discovery requests. It could result in denial of service or other impact (potentially execution of arbitrary code), for an attacker within radio range.

References

Affected packages

Ubuntu:Pro:14.04:LTS / wpa

Package

Name
wpa
Purl
pkg:deb/ubuntu/wpa@2.1-0ubuntu1.7+esm4?arch=source&distro=trusty/esm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.1-0ubuntu1.7+esm4

Affected versions

1.*

1.0-3ubuntu2
1.0-3ubuntu3
1.0-3ubuntu4

2.*

2.1-0ubuntu1
2.1-0ubuntu1.1
2.1-0ubuntu1.2
2.1-0ubuntu1.3
2.1-0ubuntu1.4
2.1-0ubuntu1.5
2.1-0ubuntu1.6
2.1-0ubuntu1.7
2.1-0ubuntu1.7+esm2
2.1-0ubuntu1.7+esm3

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "hostapd",
            "binary_version": "1:2.1-0ubuntu1.7+esm4"
        },
        {
            "binary_name": "hostapd-dbgsym",
            "binary_version": "1:2.1-0ubuntu1.7+esm4"
        },
        {
            "binary_name": "wpagui",
            "binary_version": "2.1-0ubuntu1.7+esm4"
        },
        {
            "binary_name": "wpagui-dbgsym",
            "binary_version": "2.1-0ubuntu1.7+esm4"
        },
        {
            "binary_name": "wpasupplicant",
            "binary_version": "2.1-0ubuntu1.7+esm4"
        },
        {
            "binary_name": "wpasupplicant-dbgsym",
            "binary_version": "2.1-0ubuntu1.7+esm4"
        },
        {
            "binary_name": "wpasupplicant-udeb",
            "binary_version": "2.1-0ubuntu1.7+esm4"
        },
        {
            "binary_name": "wpasupplicant-udeb-dbgsym",
            "binary_version": "2.1-0ubuntu1.7+esm4"
        }
    ]
}

Ubuntu:16.04:LTS / wpa

Package

Name
wpa
Purl
pkg:deb/ubuntu/wpa@2.4-0ubuntu6.8?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4-0ubuntu6.8

Affected versions

2.*

2.4-0ubuntu3
2.4-0ubuntu4
2.4-0ubuntu5
2.4-0ubuntu6
2.4-0ubuntu6.2
2.4-0ubuntu6.3
2.4-0ubuntu6.4
2.4-0ubuntu6.5
2.4-0ubuntu6.6
2.4-0ubuntu6.7

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "hostapd",
            "binary_version": "1:2.4-0ubuntu6.8"
        },
        {
            "binary_name": "hostapd-dbgsym",
            "binary_version": "1:2.4-0ubuntu6.8"
        },
        {
            "binary_name": "wpagui",
            "binary_version": "2.4-0ubuntu6.8"
        },
        {
            "binary_name": "wpagui-dbgsym",
            "binary_version": "2.4-0ubuntu6.8"
        },
        {
            "binary_name": "wpasupplicant",
            "binary_version": "2.4-0ubuntu6.8"
        },
        {
            "binary_name": "wpasupplicant-dbgsym",
            "binary_version": "2.4-0ubuntu6.8"
        },
        {
            "binary_name": "wpasupplicant-udeb",
            "binary_version": "2.4-0ubuntu6.8"
        },
        {
            "binary_name": "wpasupplicant-udeb-dbgsym",
            "binary_version": "2.4-0ubuntu6.8"
        }
    ]
}

Ubuntu:18.04:LTS / wpa

Package

Name
wpa
Purl
pkg:deb/ubuntu/wpa@2:2.6-15ubuntu2.8?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:2.6-15ubuntu2.8

Affected versions

2.*

2.4-0ubuntu10

2:2.*

2:2.4-1.1ubuntu1
2:2.6-15ubuntu1
2:2.6-15ubuntu2
2:2.6-15ubuntu2.1
2:2.6-15ubuntu2.2
2:2.6-15ubuntu2.3
2:2.6-15ubuntu2.4
2:2.6-15ubuntu2.5
2:2.6-15ubuntu2.6
2:2.6-15ubuntu2.7

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "hostapd",
            "binary_version": "2:2.6-15ubuntu2.8"
        },
        {
            "binary_name": "hostapd-dbgsym",
            "binary_version": "2:2.6-15ubuntu2.8"
        },
        {
            "binary_name": "wpagui",
            "binary_version": "2:2.6-15ubuntu2.8"
        },
        {
            "binary_name": "wpagui-dbgsym",
            "binary_version": "2:2.6-15ubuntu2.8"
        },
        {
            "binary_name": "wpasupplicant",
            "binary_version": "2:2.6-15ubuntu2.8"
        },
        {
            "binary_name": "wpasupplicant-dbgsym",
            "binary_version": "2:2.6-15ubuntu2.8"
        },
        {
            "binary_name": "wpasupplicant-udeb",
            "binary_version": "2:2.6-15ubuntu2.8"
        }
    ]
}

Ubuntu:20.04:LTS / wpa

Package

Name
wpa
Purl
pkg:deb/ubuntu/wpa@2:2.9-1ubuntu4.3?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:2.9-1ubuntu4.3

Affected versions

2:2.*

2:2.9-1ubuntu2
2:2.9-1ubuntu3
2:2.9-1ubuntu4
2:2.9-1ubuntu4.1
2:2.9-1ubuntu4.2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "hostapd",
            "binary_version": "2:2.9-1ubuntu4.3"
        },
        {
            "binary_name": "hostapd-dbgsym",
            "binary_version": "2:2.9-1ubuntu4.3"
        },
        {
            "binary_name": "wpagui",
            "binary_version": "2:2.9-1ubuntu4.3"
        },
        {
            "binary_name": "wpagui-dbgsym",
            "binary_version": "2:2.9-1ubuntu4.3"
        },
        {
            "binary_name": "wpasupplicant",
            "binary_version": "2:2.9-1ubuntu4.3"
        },
        {
            "binary_name": "wpasupplicant-dbgsym",
            "binary_version": "2:2.9-1ubuntu4.3"
        },
        {
            "binary_name": "wpasupplicant-udeb",
            "binary_version": "2:2.9-1ubuntu4.3"
        }
    ]
}