NULL Pointer Dereference Affecting kernel-bootwrapper package, versions <0:3.10.0-123.20.1.el7


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    56.54% (98th percentile)

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  • Snyk ID SNYK-RHEL7-KERNELBOOTWRAPPER-4531350
  • published 26 Jul 2021
  • disclosed 10 Nov 2014

How to fix?

Upgrade RHEL:7 kernel-bootwrapper to version 0:3.10.0-123.20.1.el7 or higher.
This issue was patched in RHSA-2015:0102.

NVD Description

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

The sctp_process_param function in net/sctp/sm_make_chunk.c in the SCTP implementation in the Linux kernel before 3.17.4, when ASCONF is used, allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) via a malformed INIT chunk.

References

CVSS Scores

version 3.1
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NVD

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

6.5 medium