Debian Security Advisory DSA 1802-2 (squirrelmail)

Summary
The remote host is missing an update to squirrelmail announced via advisory DSA 1802-2.
Solution
https://secure1.securityspace.com/smysecure/catid.html?in=DSA%201802-2
Insight
Michal Hlavinka discovered that the fix for code execution in the map_yp_alias function, known as CVE-2009-1579 and released in DSA 1802-1, was incomplete. This update corrects the fix for that function. For the old stable distribution (etch), this problem has been fixed in version 1.4.9a-5. For the stable distribution (lenny), this problem has been fixed in version 1.4.15-4+lenny2. For the unstable distribution (sid), this problem has been fixed in version 1.4.19-1 We recommend that you upgrade your squirrelmail package.