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    CVE-2017-8824

    The dccp_disconnect function in net/dccp/proto.c in the Linux kernel through 4.14.3 allows local users to gain privileges or cause a denial of service (use-after-free) via an AF_UNSPEC connect system call during the DCCP_LISTEN state.

    Published:Dec 5, 2017
    Last Modified:Apr 20, 2025
    EPS:Dec 5, 2017
    EPSS Score:0.00768
    CVSS Score:7.8

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Mrg
    Vendor
    Redhat
    Product
    Rhel Aus
    Vendor
    Redhat
    Product
    Rhel E4s
    Vendor
    Redhat
    Product
    Rhel Els
    Vendor
    Redhat
    Product
    Rhel Eus
    Vendor
    Redhat
    Product
    Rhel Extras Rt
    Vendor
    Redhat
    Product
    Rhel Tus

    Exploits

    https://www.exploit-db.com/exploits/43234/https://www.exploit-db.com/exploits/43234/https://www.exploit-db.com/exploits/43234

    Common Weakness Enumeration

    CWE-416 Use After Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html
    http://lists.openwall.net/netdev/2017/12/04/224
    http://www.openwall.com/lists/oss-security/2017/12/05/1
    http://www.securityfocus.com/bid/102056
    https://access.redhat.com/errata/RHSA-2018:0399
    https://access.redhat.com/errata/RHSA-2018:0676
    https://access.redhat.com/errata/RHSA-2018:1062
    https://access.redhat.com/errata/RHSA-2018:1130
    https://access.redhat.com/errata/RHSA-2018:1170
    https://access.redhat.com/errata/RHSA-2018:1216
    https://access.redhat.com/errata/RHSA-2018:1319
    https://access.redhat.com/errata/RHSA-2018:3822
    https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0
    https://lists.debian.org/debian-lts-announce/2017/12/msg00004.html
    https://usn.ubuntu.com/3581-1/
    https://usn.ubuntu.com/3581-2/
    https://usn.ubuntu.com/3581-3/
    https://usn.ubuntu.com/3582-1/
    https://usn.ubuntu.com/3582-2/
    https://usn.ubuntu.com/3583-1/
    https://usn.ubuntu.com/3583-2/
    https://www.debian.org/security/2017/dsa-4073
    https://www.debian.org/security/2018/dsa-4082
    https://www.exploit-db.com/exploits/43234/
    http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html
    http://lists.openwall.net/netdev/2017/12/04/224
    http://www.openwall.com/lists/oss-security/2017/12/05/1
    http://www.securityfocus.com/bid/102056
    https://access.redhat.com/errata/RHSA-2018:0399
    https://access.redhat.com/errata/RHSA-2018:0676
    https://access.redhat.com/errata/RHSA-2018:1062
    https://access.redhat.com/errata/RHSA-2018:1130
    https://access.redhat.com/errata/RHSA-2018:1170
    https://access.redhat.com/errata/RHSA-2018:1216
    https://access.redhat.com/errata/RHSA-2018:1319
    https://access.redhat.com/errata/RHSA-2018:3822
    https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0
    https://lists.debian.org/debian-lts-announce/2017/12/msg00004.html
    https://usn.ubuntu.com/3581-1/
    https://usn.ubuntu.com/3581-2/
    https://usn.ubuntu.com/3581-3/
    https://usn.ubuntu.com/3582-1/
    https://usn.ubuntu.com/3582-2/
    https://usn.ubuntu.com/3583-1/
    https://usn.ubuntu.com/3583-2/
    https://www.debian.org/security/2017/dsa-4073
    https://www.debian.org/security/2018/dsa-4082
    https://www.exploit-db.com/exploits/43234/

    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