Access Restriction Bypass Affecting kernel-debug package, versions <0:3.10.0-123.20.1.el7


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
0.04% (1st percentile)

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  • Snyk IDSNYK-CENTOS7-KERNELDEBUG-2042338
  • published26 Jul 2021
  • disclosed28 Jan 2015

Introduced: 28 Jan 2015

CVE-2014-7822  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade Centos:7 kernel-debug to version 0:3.10.0-123.20.1.el7 or higher.

NVD Description

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

The implementation of certain splice_write file operations in the Linux kernel before 3.16 does not enforce a restriction on the maximum size of a single file, which allows local users to cause a denial of service (system crash) or possibly have unspecified other impact via a crafted splice system call, as demonstrated by use of a file descriptor associated with an ext4 filesystem.

CVSS Scores

version 3.1