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NULL Pointer Dereference Affecting kernel-vanilla-base package, versions <4.12.14-25.3.1

Severity

 Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.25% (66th percentile)

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  • Snyk IDSNYK-SLES150-KERNELVANILLABASE-2761436
  • published14 Apr 2022
  • disclosed27 Jul 2018
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Introduced: 27 Jul 2018

CVE-2018-1092  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade SLES:15.0 kernel-vanilla-base to version 4.12.14-25.3.1 or higher.

NVD Description

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

The ext4_iget function in fs/ext4/inode.c in the Linux kernel through 4.15.15 mishandles the case of a root directory with a zero i_links_count, which allows attackers to cause a denial of service (ext4_process_freed_data NULL pointer dereference and OOPS) via a crafted ext4 image.

References