The remote host is missing an update to poppler announced via advisory USN-850-3.

The problem can be corrected by upgrading your system to the following package versions: Ubuntu 9.10: libpoppler-glib4 0.12.0-0ubuntu2.1 libpoppler5 0.12.0-0ubuntu2.1 In general, a standard system upgrade is sufficient to effect the necessary changes. https://secure1.securityspace.com/smysecure/catid.html?in=USN-850-3

USN-850-1 fixed vulnerabilities in poppler. This update provides the corresponding updates for Ubuntu 9.10. Original advisory details: It was discovered that poppler contained multiple security issues when parsing malformed PDF documents. If a user or automated system were tricked into opening a crafted PDF file, an attacker could cause a denial of service or execute arbitrary code with privileges of the user invoking the program.