NULL Pointer Dereference Affecting kernel-uek package, versions <0:2.6.39-400.306.1.el5uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.11% (44th percentile)

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  • Snyk IDSNYK-ORACLE5-KERNELUEK-2545320
  • published10 Apr 2022
  • disclosed2 Apr 2018

Introduced: 2 Apr 2018

CVE-2018-1094  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Oracle:5 kernel-uek to version 0:2.6.39-400.306.1.el5uek or higher.
This issue was patched in ELSA-2019-4533.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek package and not the kernel-uek package as distributed by Oracle. See How to fix? for Oracle:5 relevant fixed versions and status.

The ext4_fill_super function in fs/ext4/super.c in the Linux kernel through 4.15.15 does not always initialize the crc32c checksum driver, which allows attackers to cause a denial of service (ext4_xattr_inode_hash NULL pointer dereference and system crash) via a crafted ext4 image.

CVSS Scores

version 3.1