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Use After Free Affecting ocfs2-kmp-default package, versions <4.12.14-150.27.1

Severity

 Recommended
0.0
low
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.07% (34th percentile)

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  • Snyk IDSNYK-SLES150-OCFS2KMPDEFAULT-2745170
  • published14 Apr 2022
  • disclosed15 Jul 2019
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Introduced: 15 Jul 2019

CVE-2019-12819  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade SLES:15.0 ocfs2-kmp-default to version 4.12.14-150.27.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ocfs2-kmp-default package and not the ocfs2-kmp-default package as distributed by SLES. See How to fix? for SLES:15.0 relevant fixed versions and status.

An issue was discovered in the Linux kernel before 5.0. The function __mdiobus_register() in drivers/net/phy/mdio_bus.c calls put_device(), which will trigger a fixed_mdio_bus_init use-after-free. This will cause a denial of service.