Resource Exhaustion Affecting kernel-bootwrapper package, versions <0:3.10.0-514.el7


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.15% (52nd percentile)

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  • Snyk ID SNYK-RHEL7-KERNELBOOTWRAPPER-4655468
  • published 26 Jul 2021
  • disclosed 19 Jan 2016

How to fix?

Upgrade RHEL:7 kernel-bootwrapper to version 0:3.10.0-514.el7 or higher.
This issue was patched in RHSA-2016:2574.

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 Linux kernel before 4.4.1 allows local users to bypass file-descriptor limits and cause a denial of service (memory consumption) by sending each descriptor over a UNIX socket before closing it, related to net/unix/af_unix.c and net/unix/garbage.c.

CVSS Scores

version 3.1
Expand this section

Red Hat

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