Use After Free Affecting kernel-cross-headers package, versions <0:4.18.0-305.el8


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.13% (49th percentile)

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  • Snyk ID SNYK-RHEL8-KERNELCROSSHEADERS-3964801
  • published 26 Jul 2021
  • disclosed 9 Oct 2019

How to fix?

Upgrade RHEL:8 kernel-cross-headers to version 0:4.18.0-305.el8 or higher.
This issue was patched in RHSA-2021:1578.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-cross-headers package and not the kernel-cross-headers package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

In the Linux kernel before 5.3.7, there is a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/misc/iowarrior.c driver, aka CID-edc4746f253d.

CVSS Scores

version 3.1
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NVD

6.1 medium
  • Attack Vector (AV)
    Physical
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    None
  • Availability (A)
    High
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Red Hat

6.1 medium
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SUSE

4.3 medium