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    CVE-2020-27673

    An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x. Guest OS users can cause a denial of service (host OS hang) via a high rate of events to dom0, aka CID-e99502f76271.

    Published:Oct 20, 2020
    Last Modified:Nov 21, 2024
    EPS:Oct 22, 2020
    EPSS Score:0.00051
    CVSS Score:5.5

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Opensuse
    Product
    Leap
    Vendor
    Xen
    Product
    Xen

    Exploits

    No exploit reference

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    References

    http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00075.html
    http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00025.html
    http://www.openwall.com/lists/oss-security/2021/01/19/6
    https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e99502f76271d6bc4e374fe368c50c67a1fd3070
    https://github.com/torvalds/linux/commit/e99502f76271d6bc4e374fe368c50c67a1fd3070
    https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html
    https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html
    https://security.gentoo.org/glsa/202011-06
    https://xenbits.xen.org/xsa/advisory-332.html
    http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00075.html
    http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00025.html
    http://www.openwall.com/lists/oss-security/2021/01/19/6
    https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e99502f76271d6bc4e374fe368c50c67a1fd3070
    https://github.com/torvalds/linux/commit/e99502f76271d6bc4e374fe368c50c67a1fd3070
    https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html
    https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html
    https://security.gentoo.org/glsa/202011-06
    https://xenbits.xen.org/xsa/advisory-332.html

    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