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Use After Free Affecting kernel-devel-azure package, versions <4.12.14-8.13.1

Severity

 Recommended
0.0
low
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.07% (35th percentile)

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  • Snyk IDSNYK-SLES151-KERNELDEVELAZURE-2740761
  • published14 Apr 2022
  • disclosed6 Aug 2019
Report a new vulnerability Found a mistake?

Introduced: 6 Aug 2019

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

How to fix?

Upgrade SLES:15.1 kernel-devel-azure to version 4.12.14-8.13.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-devel-azure package and not the kernel-devel-azure package as distributed by SLES. See How to fix? for SLES:15.1 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.