USN-4757-2

It was discovered that wpa_supplicant did not properly handle P2P (Wi-Fi Direct) provision discovery requests in some situations. A physically proximate attacker could use this to cause a denial of service or possibly execute arbitrary code.

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+esm1

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_version": "1:2.1-0ubuntu1.7+esm4",
            "binary_name": "hostapd"
        },
        {
            "binary_version": "2.1-0ubuntu1.7+esm4",
            "binary_name": "wpagui"
        },
        {
            "binary_version": "2.1-0ubuntu1.7+esm4",
            "binary_name": "wpasupplicant"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4757-2.json"

cves_map

{
    "cves": [
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2021-27803"
        }
    ],
    "ecosystem": "Ubuntu:Pro:14.04:LTS"
}