NULL Pointer Dereference Affecting kernel package, versions <0:3.10.0-123.9.2.el7


Severity

Recommended
high

Based on CentOS security rating

    Threat Intelligence

    EPSS
    2.5% (91st percentile)

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  • Snyk ID SNYK-CENTOS7-KERNEL-2038856
  • published 26 Jul 2021
  • disclosed 17 Jul 2014

How to fix?

Upgrade Centos:7 kernel to version 0:3.10.0-123.9.2.el7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

The sctp_assoc_update function in net/sctp/associola.c in the Linux kernel through 3.15.8, when SCTP authentication is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and OOPS) by starting to establish an association between two endpoints immediately after an exchange of INIT and INIT ACK chunks to establish an earlier association between these endpoints in the opposite direction.

CVSS Scores

version 3.1
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NVD

6.5 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    High
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Red Hat

6.5 medium