Loop with Unreachable Exit Condition ('Infinite Loop') Affecting kernel-uek-tools-libs package, versions <0:4.14.35-2025.402.2.1.el7uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEKTOOLSLIBS-2579838
  • published10 Apr 2022
  • disclosed6 Oct 2020

Introduced: 6 Oct 2020

CVE-2020-25641  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-uek-tools-libs to version 0:4.14.35-2025.402.2.1.el7uek or higher.
This issue was patched in ELSA-2020-5913.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-tools-libs package and not the kernel-uek-tools-libs 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's implementation of biovecs in versions before 5.9-rc7. A zero-length biovec request issued by the block subsystem could cause the kernel to enter an infinite loop, causing a denial of service. This flaw allows a local attacker with basic privileges to issue requests to a block device, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

CVSS Scores

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