UBUNTU-CVE-2020-10756

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    UBUNTU-CVE-2020-10756

    Published: 9 Jul 2020Last Modified: 22 Apr 2026
    Upstream:
    CVE-2020-10756

    Summary:

    Details: An out-of-bounds read vulnerability was found in the SLiRP networking implementation of the QEMU emulator. This flaw occurs in the icmp6_send_echoreply() routine while replying to an ICMP echo request, also known as ping. This flaw allows a malicious guest to leak the contents of the host memory, resulting in possible information disclosure. This flaw affects versions of libslirp before 4.3.1.

    References: https://ubuntu.com/security/CVE-2020-10756, https://ubuntu.com/security/notices/USN-4437-1, https://ubuntu.com/security/notices/USN-4467-1, https://www.cve.org/CVERecord?id=CVE-2020-10756

    Affected packages

    Package

    Name: qemu

    Purl: pkg:deb/ubuntu/qemu@1:2.11+dfsg-1ubuntu7.31?arch=source&distro=bionic

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1:2.11+dfsg-1ubuntu7.31

    Affected versions

    1:2.10+dfsg-0ubuntu3

    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-2020-10756 | CVE-DB