USN-4734-2

Source
https://ubuntu.com/security/notices/USN-4734-2
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4734-2.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-4734-2
Upstream
Related
Published
2021-02-16T21:33:59.019967Z
Modified
2025-10-14T16:38:05Z
Summary
wpa vulnerabilities
Details

USN-4734-1 fixed several vulnerabilities in wpa_supplicant. This update provides the corresponding update for Ubuntu 14.04 ESM.

It was discovered that wpa_supplicant did not properly handle P2P (Wi-Fi Direct) group information in some situations, leading to a heap overflow. A physically proximate attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2021-0326)

It was discovered that hostapd did not properly handle UPnP subscribe messages in some circumstances. An attacker could use this to cause a denial of service. (CVE-2020-12695)

References

Affected packages

Ubuntu:Pro:14.04:LTS / wpa

Package

Name
wpa
Purl
pkg:deb/ubuntu/wpa@2.1-0ubuntu1.7+esm3?arch=source&distro=trusty/esm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.1-0ubuntu1.7+esm3

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

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "1:2.1-0ubuntu1.7+esm3",
            "binary_name": "hostapd"
        },
        {
            "binary_version": "2.1-0ubuntu1.7+esm3",
            "binary_name": "wpagui"
        },
        {
            "binary_version": "2.1-0ubuntu1.7+esm3",
            "binary_name": "wpasupplicant"
        }
    ]
}

Database specific

{
    "cves_map": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "cves": [
            {
                "severity": [
                    {
                        "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:H",
                        "type": "CVSS_V3"
                    },
                    {
                        "score": "medium",
                        "type": "Ubuntu"
                    }
                ],
                "id": "CVE-2020-12695"
            },
            {
                "severity": [
                    {
                        "score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                        "type": "CVSS_V3"
                    },
                    {
                        "score": "high",
                        "type": "Ubuntu"
                    }
                ],
                "id": "CVE-2021-0326"
            }
        ]
    }
}