SB2006101003 - Out-of-bounds read in Linux kernel

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Main Vulnerability Database SB2006101003

SB2006101003 - Out-of-bounds read in Linux kernel

Published: October 10, 2006

Security Bulletin ID SB2006101003
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Out-of-bounds read (CVE-ID: CVE-2006-5174)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a local user to gain access to sensitive information.

The copy_from_user function in the uaccess code in Linux kernel 2.6 before 2.6.19-rc1, when running on s390, does not properly clear a kernel buffer, which allows local user space programs to read portions of kernel memory by 'appending to a file from a bad address,' which triggers a fault that prevents the unused memory from being cleared in the kernel buffer. This vulnerability is addressed in the following product update: Linux, Linux kernel, 2.6.19 rc1


Remediation

Install update from vendor's website.

References