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    CVE-2024-27395

    In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: Fix Use-After-Free in ovs_ct_exit Since kfree_rcu, which is called in the hlist_for_each_entry_rcu traversal of ovs_ct_limit_exit, is not part of the RCU read critical section, it is possible that the RCU grace period will pass during the traversal and the key will be free. To prevent this, it should be changed to hlist_for_each_entry_safe.

    Published:May 8, 2024
    Last Modified:May 12, 2026
    EPS:May 9, 2024
    EPSS Score:0.00017
    CVSS Score:7.8

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Eus

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-416 Use After Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    https://git.kernel.org/stable/c/2db9a8c0a01fa1c762c1e61a13c212c492752994
    https://git.kernel.org/stable/c/35880c3fa6f8fe281a19975d2992644588ca33d3
    https://git.kernel.org/stable/c/589523cf0b384164e445dd5db8d5b1bf97982424
    https://git.kernel.org/stable/c/5ea7b72d4fac2fdbc0425cd8f2ea33abe95235b2
    https://git.kernel.org/stable/c/9048616553c65e750d43846f225843ed745ec0d4
    https://git.kernel.org/stable/c/bca6fa2d9a9f560e6b89fd5190b05cc2f5d422c1
    https://git.kernel.org/stable/c/eaa5e164a2110d2fb9e16c8a29e4501882235137
    https://git.kernel.org/stable/c/edee0758747d7c219e29db9ed1d4eb33e8d32865
    https://git.kernel.org/stable/c/2db9a8c0a01fa1c762c1e61a13c212c492752994
    https://git.kernel.org/stable/c/35880c3fa6f8fe281a19975d2992644588ca33d3
    https://git.kernel.org/stable/c/589523cf0b384164e445dd5db8d5b1bf97982424
    https://git.kernel.org/stable/c/5ea7b72d4fac2fdbc0425cd8f2ea33abe95235b2
    https://git.kernel.org/stable/c/9048616553c65e750d43846f225843ed745ec0d4
    https://git.kernel.org/stable/c/bca6fa2d9a9f560e6b89fd5190b05cc2f5d422c1
    https://git.kernel.org/stable/c/eaa5e164a2110d2fb9e16c8a29e4501882235137
    https://git.kernel.org/stable/c/edee0758747d7c219e29db9ed1d4eb33e8d32865
    https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
    https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
    https://cert-portal.siemens.com/productcert/html/ssa-265688.html
    https://cert-portal.siemens.com/productcert/html/ssa-613116.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