UBUNTU-CVE-2021-27803

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    UBUNTU-CVE-2021-27803

    Published: 26 Feb 2021Last Modified: 4 Feb 2026
    Upstream:
    CVE-2021-27803

    Summary:

    Details: A vulnerability was discovered in how p2p/p2p_pd.c in wpa_supplicant 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: https://ubuntu.com/security/CVE-2021-27803, https://www.openwall.com/lists/oss-security/2021/02/25/3, https://w1.fi/security/2021-1/wpa_supplicant-p2p-provision-discovery-processing-vulnerability.txt, http://www.openwall.com/lists/oss-security/2021/02/27/1, https://ubuntu.com/security/notices/USN-4757-1, https://ubuntu.com/security/notices/USN-4757-2, https://www.cve.org/CVERecord?id=CVE-2021-27803

    Affected packages

    Package

    Name: wpa

    Purl: pkg:deb/ubuntu/[email protected]+esm4?arch=source&distro=trusty/esm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.1-0ubuntu1.7+esm4

    Affected versions

    1.0-3ubuntu2

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    UBUNTU-CVE-2021-27803 | CVE-DB