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Time-of-check Time-of-use (TOCTOU) Affecting kernel-bootwrapper package, versions <0:3.10.0-327.22.2.el7

Severity

 Recommended
high

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.18% (56th percentile)

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  • Snyk ID SNYK-RHEL7-KERNELBOOTWRAPPER-4617009
  • published 26 Jul 2021
  • disclosed 11 Jan 2015
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Introduced: 11 Jan 2015

CVE-2015-8767 Open this link in a new tab
CWE-367 Open this link in a new tab

How to fix?

Upgrade RHEL:7 kernel-bootwrapper to version 0:3.10.0-327.22.2.el7 or higher.
This issue was patched in RHSA-2016:1277.

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.

net/sctp/sm_sideeffect.c in the Linux kernel before 4.3 does not properly manage the relationship between a lock and a socket, which allows local users to cause a denial of service (deadlock) via a crafted sctp_accept call.

References

CVSS Scores

version 3.1
Expand this section

Red Hat

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