OSVDB ID: 22731

Title: FreeBSD Buffer Length Logic Error Arbitrary Kernel Memory Disclosure

Info

Disclosure

Jan 25, 2006

Discovery

Unknown

Dates

Exploit

Unknown

Solution

Unknown

Description

FreeBSD contains a flaw that may lead to an unauthorized information disclosure. The issue is triggered when a logic error in computing a buffer length may allow too much data to be copied into userland, which may disclose portions of kernel memory resulting in a loss of confidentiality.

Classification

Location: Local Access Required
Attack Type: Information Disclosure
Impact: Loss of Confidentiality
Disclosure: OSVDB Verified

Solution

Upgrade to version 5-STABLE or 6-STABLE, or to the RELENG_6_0 security branch dated after the correction date, as it has been reported to fix this vulnerability. In addition, FreeBSD has released a patch for some older versions.

Products

FreeBSD Project

FreeBSD

5.4-STABLE
6.0

References

Credit

  • Xin LI - delphijfrontfree.net -
  • Karl Janmar -


Direct URL: http://osvdb.org/22731