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Out-of-bounds Read Affecting kernel-rt-devel package, versions <0:3.10.0-1127.rt56.1093.el7

Severity

 Recommended
0.0
medium
0
10

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.14% (51st percentile)

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  • Snyk ID SNYK-CENTOS7-KERNELRTDEVEL-2155342
  • published 26 Jul 2021
  • disclosed 12 Dec 2018
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Introduced: 12 Dec 2018

CVE-2018-19985 Open this link in a new tab
CWE-125 Open this link in a new tab

How to fix?

Upgrade Centos:7 kernel-rt-devel to version 0:3.10.0-1127.rt56.1093.el7 or higher.

NVD Description

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

The function hso_get_config_data in drivers/net/usb/hso.c in the Linux kernel through 4.19.8 reads if_num from the USB device (as a u8) and uses it to index a small array, resulting in an object out-of-bounds (OOB) read that potentially allows arbitrary read in the kernel address space.