UBUNTU-CVE-2020-7039

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    UBUNTU-CVE-2020-7039

    Published: 16 Jan 2020Last Modified: 4 Feb 2026
    Upstream:
    CVE-2020-7039

    Summary:

    Details: tcp_emu in tcp_subr.c in libslirp 4.1.0, as used in QEMU 4.2.0, mismanages memory, as demonstrated by IRC DCC commands in EMU_IRC. This can cause a heap-based buffer overflow or other out-of-bounds access which can lead to a DoS or potential execute arbitrary code.

    References: https://ubuntu.com/security/CVE-2020-7039, https://www.openwall.com/lists/oss-security/2020/01/16/2, https://ubuntu.com/security/notices/USN-4283-1, https://ubuntu.com/security/notices/USN-4632-1, https://www.cve.org/CVERecord?id=CVE-2020-7039, https://ubuntu.com/security/notices/USN-7094-1

    Affected packages

    Package

    Name: qemu

    Purl: pkg:deb/ubuntu/[email protected]+dfsg-2ubuntu1.47+esm4?arch=source&distro=trusty/esm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.0.0+dfsg-2ubuntu1.47+esm4

    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
    UBUNTU-CVE-2020-7039 | CVE-DB