UBUNTU-CVE-2020-35499

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    UBUNTU-CVE-2020-35499

    Published: 19 Feb 2021Last Modified: 13 Oct 2026
    Upstream:
    CVE-2020-35499

    Summary:

    Details: A NULL pointer dereference flaw in Linux kernel versions prior to 5.11 may be seen if sco_sock_getsockopt function in net/bluetooth/sco.c do not have a sanity check for a socket connection, when using BT_SNDMTU/BT_RCVMTU for SCO sockets. This could allow a local attacker with a special user privilege to crash the system (DOS) or leak kernel internal information.

    References: https://ubuntu.com/security/CVE-2020-35499, https://bugzilla.redhat.com/show_bug.cgi?id=1910048, https://git.kernel.org/linus/f6b8c6b5543983e9de29dc14716bfa4eb3f157c4, https://www.cve.org/CVERecord?id=CVE-2020-35499

    Affected packages

    Package

    Name: linux

    Purl: pkg:deb/ubuntu/linux?arch=source&distro=esm-infra-legacy%2Ftrusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    3.11.0-12.19

    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-2020-35499 | CVE-DB