Use After Free Affecting kernel-kdump-devel package, versions <0:3.10.0-1127.8.2.el7


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
1.54% (87th percentile)

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  • Snyk IDSNYK-CENTOS7-KERNELKDUMPDEVEL-2165212
  • published26 Jul 2021
  • disclosed29 Nov 2019

Introduced: 29 Nov 2019

CVE-2019-19768  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Centos:7 kernel-kdump-devel to version 0:3.10.0-1127.8.2.el7 or higher.

NVD Description

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

In the Linux kernel 5.4.0-rc2, there is a use-after-free (read) in the __blk_add_trace function in kernel/trace/blktrace.c (which is used to fill out a blk_io_trace structure and place it in a per-cpu sub-buffer).

CVSS Scores

version 3.1