Loop with Unreachable Exit Condition ('Infinite Loop') Affecting kernel-uek-devel package, versions <0:4.1.12-124.18.9.el7uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
1.58% (88th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEKDEVEL-2529426
  • published10 Apr 2022
  • disclosed27 Aug 2018

Introduced: 27 Aug 2018

CVE-2018-10938  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-uek-devel to version 0:4.1.12-124.18.9.el7uek or higher.
This issue was patched in ELSA-2018-4208.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-devel package and not the kernel-uek-devel package as distributed by Oracle. See How to fix? for Oracle:7 relevant fixed versions and status.

A flaw was found in the Linux kernel present since v4.0-rc1 and through v4.13-rc4. A crafted network packet sent remotely by an attacker may force the kernel to enter an infinite loop in the cipso_v4_optptr() function in net/ipv4/cipso_ipv4.c leading to a denial-of-service. A certain non-default configuration of LSM (Linux Security Module) and NetLabel should be set up on a system before an attacker could leverage this flaw.