USN-500-1: rsync vulnerability

Publication date

20 August 2007

Overview

rsync vulnerability


Details

Sebastian Krahmer discovered that rsync contained an off-by-one
miscalculation when handling certain file paths. By creating a specially
crafted tree of files and tricking an rsync server into processing them,
a remote attacker could write a single NULL to stack memory, possibly
leading to arbitrary code execution.

Sebastian Krahmer discovered that rsync contained an off-by-one
miscalculation when handling certain file paths. By creating a specially
crafted tree of files and tricking an rsync server into processing them,
a remote attacker could write a single NULL to stack memory, possibly
leading to arbitrary code execution.

Update instructions

In general, a standard system upgrade is sufficient to effect the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
7.04 feisty rsync –  2.6.9-3ubuntu1.1
6.10 edgy rsync –  2.6.8-2ubuntu3.1
6.06 dapper rsync –  2.6.6-1ubuntu2.1

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.


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