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Use After Free Affecting kernel-kdump-devel package, versions <0:3.10.0-1160.15.2.el7

Severity

 Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.04% (6th percentile)

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  • Snyk ID SNYK-RHEL7-KERNELKDUMPDEVEL-1531869
  • published 26 Jul 2021
  • disclosed 8 Jun 2020
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Introduced: 8 Jun 2020

CVE-2020-15436 Open this link in a new tab
CWE-416 Open this link in a new tab

How to fix?

Upgrade RHEL:7 kernel-kdump-devel to version 0:3.10.0-1160.15.2.el7 or higher.
This issue was patched in RHSA-2021:0336.

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 RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

Use-after-free vulnerability in fs/block_dev.c in the Linux kernel before 5.8 allows local users to gain privileges or cause a denial of service by leveraging improper access to a certain error field.

CVSS Scores

version 3.1
Expand this section

NVD

6.7 medium
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    High
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
Expand this section

Red Hat

6.7 medium
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SUSE

6.4 medium