The remote host is missing an update to the system as announced in the referenced advisory.
The following packages are affected: koffice abiword
CVE-2005-2972 Multiple stack-based buffer overflows in the RTF import feature in AbiWord before 2.2.11 allow user-complicit attackers to execute arbitrary code via an RTF file with long identifiers, which are not properly handled in the (1) ParseLevelText, (2) getCharsInsideBrace, (3) HandleLists, (4) or (5) HandleAbiLists functions in ie_imp_RTF.cpp, a different vulnerability than CVE-2005-2964.
Solution: Update your system with the appropriate patches or software upgrades.