Incorrect Check of Function Return Value Affecting kernel-bootwrapper package, versions <0:3.10.0-1062.26.1.el7


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.07% (34th percentile)

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  • Snyk ID SNYK-RHEL7-KERNELBOOTWRAPPER-4972220
  • published 26 Jul 2021
  • disclosed 24 May 2019

How to fix?

Upgrade RHEL:7 kernel-bootwrapper to version 0:3.10.0-1062.26.1.el7 or higher.
This issue was patched in RHSA-2020:2522.

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.

An issue was discovered in drm_load_edid_firmware in drivers/gpu/drm/drm_edid_load.c in the Linux kernel through 5.1.5. There is an unchecked kstrdup of fwstr, which might allow an attacker to cause a denial of service (NULL pointer dereference and system crash). NOTE: The vendor disputes this issues as not being a vulnerability because kstrdup() returning NULL is handled sufficiently and there is no chance for a NULL pointer dereference