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    CVE-2020-15863

    hw/net/xgmac.c in the XGMAC Ethernet controller in QEMU before 07-20-2020 has a buffer overflow. This occurs during packet transmission and affects the highbank and midway emulated machines. A guest user or process could use this flaw to crash the QEMU process on the host, resulting in a denial of service or potential privileged code execution. This was fixed in commit 5519724a13664b43e225ca05351c60b4468e4555.

    Published:Jul 10, 2020
    Last Modified:Nov 21, 2024
    EPS:Jul 28, 2020
    EPSS Score:0.0004
    CVSS Score:5.3

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Qemu
    Product
    Qemu

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00024.html
    http://www.openwall.com/lists/oss-security/2020/07/22/1
    https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=5519724a13664b43e225ca05351c60b4468e4555
    https://lists.nongnu.org/archive/html/qemu-devel/2020-07/msg03497.html
    https://lists.nongnu.org/archive/html/qemu-devel/2020-07/msg05745.html
    https://security.gentoo.org/glsa/202208-27
    https://usn.ubuntu.com/4467-1/
    https://www.debian.org/security/2020/dsa-4760
    http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00024.html
    http://www.openwall.com/lists/oss-security/2020/07/22/1
    https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=5519724a13664b43e225ca05351c60b4468e4555
    https://lists.nongnu.org/archive/html/qemu-devel/2020-07/msg03497.html
    https://lists.nongnu.org/archive/html/qemu-devel/2020-07/msg05745.html
    https://security.gentoo.org/glsa/202208-27
    https://usn.ubuntu.com/4467-1/
    https://www.debian.org/security/2020/dsa-4760

    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