7.8
CWE
476 119
Advisory Published
Updated

CVE-2017-2634: Null Pointer Dereference

First published: Fri Jul 27 2018(Updated: )

It was found that the Linux kernel's Datagram Congestion Control Protocol (DCCP) implementation before 2.6.22.17 used the IPv4-only inet_sk_rebuild_header() function for both IPv4 and IPv6 DCCP connections, which could result in memory corruptions. A remote attacker could use this flaw to crash the system.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
Linux kernel<2.6.22.17
Red Hat Enterprise Linux Desktop=5.0
Red Hat Enterprise Linux Server=5.0
Red Hat Enterprise Linux Server=5.6
Red Hat Enterprise Linux Server=5.9
Red Hat Enterprise Linux Workstation=5.0

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Frequently Asked Questions

  • What is the severity of CVE-2017-2634?

    CVE-2017-2634 is considered a medium severity vulnerability due to the potential for a remote attacker to cause a denial of service.

  • How do I fix CVE-2017-2634?

    To remediate CVE-2017-2634, upgrade to a patched version of the Linux kernel or the affected Red Hat Enterprise Linux products.

  • Which versions of the Linux kernel are affected by CVE-2017-2634?

    CVE-2017-2634 affects Linux kernel versions prior to 2.6.22.17.

  • Can CVE-2017-2634 affect IPv6 connections?

    Yes, CVE-2017-2634 can affect both IPv4 and IPv6 DCCP connections due to the flawed implementation.

  • Are Red Hat Enterprise Linux products affected by CVE-2017-2634?

    Yes, Red Hat Enterprise Linux Desktop and Server versions 5.0, along with specific versions, are affected by CVE-2017-2634.

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