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    CVE-2020-29374

    An issue was discovered in the Linux kernel before 5.7.3, related to mm/gup.c and mm/huge_memory.c. The get_user_pages (aka gup) implementation, when used for a copy-on-write page, does not properly consider the semantics of read operations and therefore can grant unintended write access, aka CID-17839856fd58.

    Published:Jun 2, 2020
    Last Modified:Nov 21, 2024
    EPS:Nov 28, 2020
    EPSS Score:0.00021
    CVSS Score:3.6

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Netapp
    Product
    500f
    Vendor
    Netapp
    Product
    500f Firmware
    Vendor
    Netapp
    Product
    A250
    Vendor
    Netapp
    Product
    A250 Firmware
    Vendor
    Netapp
    Product
    H410c
    Vendor
    Netapp
    Product
    H410c Firmware
    Vendor
    Netapp
    Product
    Hci Compute Node Bios
    Vendor
    Netapp
    Product
    Solidfire \& Hci Management Node
    Vendor
    Netapp
    Product
    Solidfire \& Hci Storage Node

    Exploits

    http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.htmlhttps://bugs.chromium.org/p/project-zero/issues/detail?id=2045http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.htmlhttps://bugs.chromium.org/p/project-zero/issues/detail?id=2045

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    References

    http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html
    https://bugs.chromium.org/p/project-zero/issues/detail?id=2045
    https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.3
    https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=17839856fd588f4ab6b789f482ed3ffd7c403e1f
    https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
    https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
    https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
    https://security.netapp.com/advisory/ntap-20210115-0002/
    https://www.debian.org/security/2022/dsa-5096
    http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html
    https://bugs.chromium.org/p/project-zero/issues/detail?id=2045
    https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.3
    https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=17839856fd588f4ab6b789f482ed3ffd7c403e1f
    https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
    https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
    https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
    https://security.netapp.com/advisory/ntap-20210115-0002/
    https://www.debian.org/security/2022/dsa-5096

    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