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Information Exposure Affecting kernel-debug package, versions <0:3.10.0-327.28.3.el7

Severity

 Recommended
high

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.45% (76th percentile)

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  • Snyk ID SNYK-RHEL7-KERNELDEBUG-4666942
  • published 26 Jul 2021
  • disclosed 12 Jul 2016
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Introduced: 12 Jul 2016

CVE-2016-5696 Open this link in a new tab
CWE-203 Open this link in a new tab

How to fix?

Upgrade RHEL:7 kernel-debug to version 0:3.10.0-327.28.3.el7 or higher.
This issue was patched in RHSA-2016:1633.

NVD Description

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

net/ipv4/tcp_input.c in the Linux kernel before 4.7 does not properly determine the rate of challenge ACK segments, which makes it easier for remote attackers to hijack TCP sessions via a blind in-window attack.

References