Out-of-bounds Write Affecting kernel package, versions <0:3.10.0-957.56.1.el7


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.29% (70th percentile)

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  • Snyk ID SNYK-RHEL7-KERNEL-4936792
  • published 26 Jul 2021
  • disclosed 5 Dec 2018

How to fix?

Upgrade RHEL:7 kernel to version 0:3.10.0-957.56.1.el7 or higher.
This issue was patched in RHSA-2020:2851.

NVD Description

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

An issue was discovered in the Linux kernel before 4.19.9. The USB subsystem mishandles size checks during the reading of an extra descriptor, related to __usb_get_extra_descriptor in drivers/usb/core/usb.c.

CVSS Scores

version 3.1
Expand this section

NVD

6.8 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)
    High
  • Availability (A)
    High