The remote host is missing an update to the system as announced in the referenced advisory.

Update your system with the appropriate patches or software upgrades. http://www.mozilla.org/security/announce/mfsa2005-30.html http://xforce.iss.net/xforce/alerts/id/191 https://bugzilla.mozilla.org/show_bug.cgi?id=285595 http://www.vuxml.org/freebsd/7d2aac52-9c6b-11d9-99a7-000a95bc6fae.html

The following packages are affected: firefox thunderbird linux-firefox mozilla linux-mozilla linux-mozilla-devel netscape7 de-linux-mozillafirebird el-linux-mozillafirebird ja-linux-mozillafirebird-gtk1 ja-mozillafirebird-gtk2 linux-mozillafirebird ru-linux-mozillafirebird zhCN-linux-mozillafirebird zhTW-linux-mozillafirebird de-linux-netscape de-netscape7 fr-linux-netscape fr-netscape7 ja-linux-netscape ja-netscape7 linux-netscape linux-phoenix mozilla+ipv6 mozilla-embedded mozilla-firebird mozilla-gtk1 mozilla-gtk2 mozilla-gtk mozilla-thunderbird phoenix pt_BR-netscape7 CVE-2005-0399 Heap-based buffer overflow in GIF2.cpp in Firefox before 1.0.2, Mozilla before to 1.7.6, and Thunderbird before 1.0.2, and possibly other applications that use the same library, allows remote attackers to execute arbitrary code via a GIF image with a crafted Netscape extension 2 block and buffer size.