2.1 - USN-165-1

Executive Summary

Summary
Title	heartbeat vulnerability

Informations
Name	USN-165-1	First vendor Publication	2005-08-11
Vendor	Ubuntu	Last vendor Modification	2005-08-11
Severity (Vendor)	N/A	Revision	N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score	NA
Base Score	NA	Environmental Score	NA
impact SubScore	NA	Temporal Score	NA
Exploitabality Sub Score	NA

Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:N/I:P/A:N)
Cvss Base Score	2.1	Attack Range	Local
Cvss Impact Score	2.9	Attack Complexity	Low
Cvss Expoit Score	3.9	Authentication	None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A security issue affects the following Ubuntu releases:

Ubuntu 4.10 (Warty Warthog) Ubuntu 5.04 (Hoary Hedgehog)

The following packages are affected:

heartbeat

The problem can be corrected by upgrading the affected package to version 1.2.2-8ubuntu0.1 (for Ubuntu 4.10), or 1.2.3-3ubuntu1.1 (for Ubuntu 5.04). In general, a standard system upgrade is sufficient to effect the necessary changes.

Details follow:

Eric Romang discovered that heartbeat created temporary files in an insecure manner. This could allow a symlink attack to create or overwrite arbitrary files with root privileges as soon as heartbeat is started.