UBUNTU-CVE-2019-12068

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    UBUNTU-CVE-2019-12068

    Published: 24 Sept 2019Last Modified: 4 Feb 2026
    Upstream:
    CVE-2019-12068

    Summary:

    Details: In QEMU 1:4.1-1, 1:2.1+dfsg-12+deb8u6, 1:2.8+dfsg-6+deb9u8, 1:3.1+dfsg-8~deb10u1, 1:3.1+dfsg-8+deb10u2, and 1:2.1+dfsg-12+deb8u12 (fixed), when executing script in lsi_execute_script(), the LSI scsi adapter emulator advances 's->dsp' index to read next opcode. This can lead to an infinite loop if the next opcode is empty. Move the existing loop exit after 10k iterations so that it covers no-op opcodes as well.

    References: https://ubuntu.com/security/CVE-2019-12068, https://lists.gnu.org/archive/html/qemu-devel/2019-08/msg01518.html, https://ubuntu.com/security/notices/USN-4191-1, https://ubuntu.com/security/notices/USN-4191-2, https://www.cve.org/CVERecord?id=CVE-2019-12068

    Affected packages

    Package

    Name: qemu

    Purl: pkg:deb/ubuntu/[email protected]+dfsg-2ubuntu1.47?arch=source&distro=trusty/esm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.0.0+dfsg-2ubuntu1.47

    Affected versions

    1.5.0+dfsg-3ubuntu5
    1.5.0+dfsg-3ubuntu6

    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