SB2007072801 - Memory corruption in Linux kernel



SB2007072801 - Memory corruption in Linux kernel

Published: July 28, 2007

Security Bulletin ID SB2007072801
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Memory corruption (CVE-ID: CVE-2007-3105)

The vulnerability allows a local user to read and manipulate data.

Stack-based buffer overflow in the random number generator (RNG) implementation in the Linux kernel before 2.6.22 might allow local root users to cause a denial of service or gain privileges by setting the default wakeup threshold to a value greater than the output pool size, which triggers writing random numbers to the stack by the pool transfer function involving 'bound check ordering'. NOTE: this issue might only cross privilege boundaries in environments that have granular assignment of privileges for root.


Remediation

Install update from vendor's website.