Divide By Zero Affecting kernel-uek-debug package, versions <0:2.6.39-400.298.3.el5uek


Severity

Recommended
high

Based on Oracle Linux security rating

    Threat Intelligence

    EPSS
    0.04% (6th percentile)

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  • Snyk ID SNYK-ORACLE5-KERNELUEKDEBUG-2531194
  • published 10 Apr 2022
  • disclosed 1 Sep 2017

How to fix?

Upgrade Oracle:5 kernel-uek-debug to version 0:2.6.39-400.298.3.el5uek or higher.
This issue was patched in ELSA-2018-4041.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-debug package and not the kernel-uek-debug package as distributed by Oracle. See How to fix? for Oracle:5 relevant fixed versions and status.

The tcp_disconnect function in net/ipv4/tcp.c in the Linux kernel before 4.12 allows local users to cause a denial of service (__tcp_select_window divide-by-zero error and system crash) by triggering a disconnect within a certain tcp_recvmsg code path.

CVSS Scores

version 3.1
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NVD

5.5 medium
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Red Hat

5.5 medium