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    CVE-2021-43389

    An issue was discovered in the Linux kernel before 5.14.15. There is an array-index-out-of-bounds flaw in the detach_capi_ctr function in drivers/isdn/capi/kcapi.c.

    Published:Sep 24, 2021
    Last Modified:Nov 21, 2024
    EPS:Nov 4, 2021
    EPSS Score:0.00008
    CVSS Score:5.5

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Oracle
    Product
    Communications Cloud Native Core Binding Support Function
    Vendor
    Oracle
    Product
    Communications Cloud Native Core Network Exposure Function
    Vendor
    Oracle
    Product
    Communications Cloud Native Core Policy
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    https://seclists.org/oss-sec/2021/q4/39https://seclists.org/oss-sec/2021/q4/39

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-100 Overflow Buffers
    CAPEC-540 Overread Buffers

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    References

    http://www.openwall.com/lists/oss-security/2021/11/05/1
    https://bugzilla.redhat.com/show_bug.cgi?id=2013180
    https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.15
    https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1f3e2e97c003f80c4b087092b225c8787ff91e4d
    https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html
    https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
    https://lore.kernel.org/netdev/CAFcO6XOvGQrRTaTkaJ0p3zR7y7nrAWD79r48=L_BbOyrK9X-vA%40mail.gmail.com/
    https://seclists.org/oss-sec/2021/q4/39
    https://www.debian.org/security/2022/dsa-5096
    https://www.oracle.com/security-alerts/cpujul2022.html
    http://www.openwall.com/lists/oss-security/2021/11/05/1
    https://bugzilla.redhat.com/show_bug.cgi?id=2013180
    https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.15
    https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1f3e2e97c003f80c4b087092b225c8787ff91e4d
    https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html
    https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
    https://lore.kernel.org/netdev/CAFcO6XOvGQrRTaTkaJ0p3zR7y7nrAWD79r48=L_BbOyrK9X-vA%40mail.gmail.com/
    https://seclists.org/oss-sec/2021/q4/39
    https://www.debian.org/security/2022/dsa-5096
    https://www.oracle.com/security-alerts/cpujul2022.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