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

Severity

 Recommended
high

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    Exploit Maturity
    Mature
    EPSS
    0.04% (1st percentile)

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  • Snyk ID SNYK-RHEL7-KERNELBOOTWRAPPER-4531346
  • published 26 Jul 2021
  • disclosed 28 Jan 2015
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Introduced: 28 Jan 2015

CVE-2014-7822 Open this link in a new tab
CWE-264 Open this link in a new tab

How to fix?

Upgrade RHEL:7 kernel-bootwrapper to version 0:3.10.0-123.20.1.el7 or higher.
This issue was patched in RHSA-2015:0102.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-bootwrapper package and not the kernel-bootwrapper package as distributed by RHEL. See How to fix? for RHEL: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.

References

CVSS Scores

version 3.1
Expand this section

NVD

8.4 high
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
Expand this section

Red Hat

6.2 medium