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    CVE-2020-24394

    In the Linux kernel before 5.7.8, fs/nfsd/vfs.c (in the NFS server) can set incorrect permissions on new filesystem objects when the filesystem lacks ACL support, aka CID-22cf8419f131. This occurs because the current umask is not considered.

    Published:Jun 5, 2020
    Last Modified:Nov 21, 2024
    EPS:Aug 19, 2020
    EPSS Score:0.00022
    CVSS Score:7.1

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Opensuse
    Product
    Leap
    Vendor
    Oracle
    Product
    Sd-wan Edge
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Aus
    Vendor
    Redhat
    Product
    Rhel E4s
    Vendor
    Redhat
    Product
    Rhel Eus
    Vendor
    Redhat
    Product
    Rhel Extras Rt
    Vendor
    Redhat
    Product
    Rhel Tus
    Vendor
    Starwindsoftware
    Product
    Starwind Virtual San

    Exploits

    No exploit reference

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    CVE-2026-47336 (CVSS 3.3) — Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/A…
    CVE-2026-47335 (CVSS 5.5) — Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor n…
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    CVE-2026-47333 (CVSS 7.8) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si…
    CVE-2026-47332 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an intern…
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    References

    http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00007.html
    https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=962254
    https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.8
    https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=22cf8419f1319ff87ec759d0ebdff4cbafaee832
    https://security.netapp.com/advisory/ntap-20200904-0003/
    https://usn.ubuntu.com/4465-1/
    https://usn.ubuntu.com/4483-1/
    https://usn.ubuntu.com/4485-1/
    https://www.oracle.com/security-alerts/cpuApr2021.html
    https://www.starwindsoftware.com/security/sw-20210325-0004/
    http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00007.html
    https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=962254
    https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.8
    https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=22cf8419f1319ff87ec759d0ebdff4cbafaee832
    https://security.netapp.com/advisory/ntap-20200904-0003/
    https://usn.ubuntu.com/4465-1/
    https://usn.ubuntu.com/4483-1/
    https://usn.ubuntu.com/4485-1/
    https://www.oracle.com/security-alerts/cpuApr2021.html
    https://www.starwindsoftware.com/security/sw-20210325-0004/

    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