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Use After Free Affecting kernel-bootwrapper package, versions <0:3.10.0-957.el7

Severity

 Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.04% (12th percentile)

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  • Snyk ID SNYK-RHEL7-KERNELBOOTWRAPPER-4851953
  • published 26 Jul 2021
  • disclosed 21 Aug 2018
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Introduced: 21 Aug 2018

CVE-2018-10902 Open this link in a new tab
CWE-416 Open this link in a new tab

How to fix?

Upgrade RHEL:7 kernel-bootwrapper to version 0:3.10.0-957.el7 or higher.
This issue was patched in RHSA-2018:3083.

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.

It was found that the raw midi kernel driver does not protect against concurrent access which leads to a double realloc (double free) in snd_rawmidi_input_params() and snd_rawmidi_output_status() which are part of snd_rawmidi_ioctl() handler in rawmidi.c file. A malicious local attacker could possibly use this for privilege escalation.