Loop with Unreachable Exit Condition ('Infinite Loop') Affecting kernel-bootwrapper package, versions <0:3.10.0-229.14.1.el7


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    22.67% (97th percentile)

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  • Snyk ID SNYK-RHEL7-KERNELBOOTWRAPPER-4564368
  • published 26 Jul 2021
  • disclosed 1 Jul 2015

How to fix?

Upgrade RHEL:7 kernel-bootwrapper to version 0:3.10.0-229.14.1.el7 or higher.
This issue was patched in RHSA-2015:1778.

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 (1) udp_recvmsg and (2) udpv6_recvmsg functions in the Linux kernel before 4.0.6 do not properly consider yielding a processor, which allows remote attackers to cause a denial of service (system hang) via incorrect checksums within a UDP packet flood.

References

CVSS Scores

version 3.1
Expand this section

NVD

7.5 high
  • 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)
    High
Expand this section

Red Hat

6.5 medium