Säkerhetsbulletin från Debian

DSA-1987-1 lighttpd -- överbelastningsattack

Rapporterat den:

2010-02-02

Berörda paket:

lighttpd

Sårbara:

Referenser i säkerhetsdatabaser:

I Mitres CVE-förteckning: CVE-2010-0295.

Ytterligare information:

Li Ming upptäckte att lighttpd, en liten och snabb webbserver med minimalt minnesavtryck, är sårbar för ett överbelastningsangrepp på grund av dålig minneshantering. Att långsamt skicka väldigt små delar av förfrågedata får lighttpd att allokera nya buffrar för varje läsning istället för att bygga på de tidigare existerande. En angripare kan göra att detta beteende orsakar ett överbelastningstillstånd på grund av minnesförbrukning.

För den gamla stabila utgåvan (Etch) har detta problem rättats i version 1.4.13-4etch12.

För den stabila utgåvan (Lenny) har detta problem rättats i version 1.4.19-5+lenny1.

För uttestningsutgåvan (Squeeze) och den instabila utgåvan (Sid) kommer detta problem att rättas inom kort.

Vi rekommenderar att ni uppgraderar era lighttpd-paket.

Rättat i:

Debian GNU/Linux 4.0 (etch)

Källkod:: http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd_1.4.13-4etch12.dsc; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd_1.4.13.orig.tar.gz; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd_1.4.13-4etch12.diff.gz
Arkitekturoberoende komponent:: http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-doc_1.4.13-4etch12_all.deb
Alpha:: http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-mysql-vhost_1.4.13-4etch12_alpha.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd_1.4.13-4etch12_alpha.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-magnet_1.4.13-4etch12_alpha.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-webdav_1.4.13-4etch12_alpha.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-trigger-b4-dl_1.4.13-4etch12_alpha.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-cml_1.4.13-4etch12_alpha.deb
AMD64:: http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-trigger-b4-dl_1.4.13-4etch12_amd64.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-mysql-vhost_1.4.13-4etch12_amd64.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-magnet_1.4.13-4etch12_amd64.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-webdav_1.4.13-4etch12_amd64.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-cml_1.4.13-4etch12_amd64.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd_1.4.13-4etch12_amd64.deb
ARM:: http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-trigger-b4-dl_1.4.13-4etch12_arm.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd_1.4.13-4etch12_arm.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-mysql-vhost_1.4.13-4etch12_arm.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-cml_1.4.13-4etch12_arm.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-magnet_1.4.13-4etch12_arm.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-webdav_1.4.13-4etch12_arm.deb
HP Precision:: http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-mysql-vhost_1.4.13-4etch12_hppa.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-cml_1.4.13-4etch12_hppa.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd_1.4.13-4etch12_hppa.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-magnet_1.4.13-4etch12_hppa.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-webdav_1.4.13-4etch12_hppa.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-trigger-b4-dl_1.4.13-4etch12_hppa.deb
Intel IA-32:: http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-cml_1.4.13-4etch12_i386.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-magnet_1.4.13-4etch12_i386.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-trigger-b4-dl_1.4.13-4etch12_i386.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-mysql-vhost_1.4.13-4etch12_i386.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-webdav_1.4.13-4etch12_i386.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd_1.4.13-4etch12_i386.deb
Intel IA-64:: http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-webdav_1.4.13-4etch12_ia64.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-mysql-vhost_1.4.13-4etch12_ia64.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-trigger-b4-dl_1.4.13-4etch12_ia64.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-magnet_1.4.13-4etch12_ia64.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-cml_1.4.13-4etch12_ia64.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd_1.4.13-4etch12_ia64.deb
Little-endian MIPS:: http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-webdav_1.4.13-4etch12_mipsel.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-trigger-b4-dl_1.4.13-4etch12_mipsel.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd_1.4.13-4etch12_mipsel.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-mysql-vhost_1.4.13-4etch12_mipsel.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-cml_1.4.13-4etch12_mipsel.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-magnet_1.4.13-4etch12_mipsel.deb
PowerPC:: http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-magnet_1.4.13-4etch12_powerpc.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-trigger-b4-dl_1.4.13-4etch12_powerpc.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-cml_1.4.13-4etch12_powerpc.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-webdav_1.4.13-4etch12_powerpc.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-mysql-vhost_1.4.13-4etch12_powerpc.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd_1.4.13-4etch12_powerpc.deb
IBM S/390:: http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-mysql-vhost_1.4.13-4etch12_s390.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-webdav_1.4.13-4etch12_s390.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-magnet_1.4.13-4etch12_s390.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-trigger-b4-dl_1.4.13-4etch12_s390.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-cml_1.4.13-4etch12_s390.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd_1.4.13-4etch12_s390.deb
Sun Sparc:: http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-webdav_1.4.13-4etch12_sparc.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-magnet_1.4.13-4etch12_sparc.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd_1.4.13-4etch12_sparc.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-cml_1.4.13-4etch12_sparc.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-trigger-b4-dl_1.4.13-4etch12_sparc.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-mysql-vhost_1.4.13-4etch12_sparc.deb

Debian GNU/Linux 5.0 (lenny)

Källkod:: http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd_1.4.19-5+lenny1.dsc; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd_1.4.19-5+lenny1.diff.gz; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd_1.4.19.orig.tar.gz
Arkitekturoberoende komponent:: http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-doc_1.4.19-5+lenny1_all.deb
Alpha:: http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-cml_1.4.19-5+lenny1_alpha.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd_1.4.19-5+lenny1_alpha.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-webdav_1.4.19-5+lenny1_alpha.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-mysql-vhost_1.4.19-5+lenny1_alpha.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-magnet_1.4.19-5+lenny1_alpha.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-trigger-b4-dl_1.4.19-5+lenny1_alpha.deb
AMD64:: http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-cml_1.4.19-5+lenny1_amd64.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-webdav_1.4.19-5+lenny1_amd64.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-magnet_1.4.19-5+lenny1_amd64.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd_1.4.19-5+lenny1_amd64.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-mysql-vhost_1.4.19-5+lenny1_amd64.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-trigger-b4-dl_1.4.19-5+lenny1_amd64.deb
ARM:: http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-cml_1.4.19-5+lenny1_arm.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-mysql-vhost_1.4.19-5+lenny1_arm.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd_1.4.19-5+lenny1_arm.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-webdav_1.4.19-5+lenny1_arm.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-magnet_1.4.19-5+lenny1_arm.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-trigger-b4-dl_1.4.19-5+lenny1_arm.deb
ARM EABI:: http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-webdav_1.4.19-5+lenny1_armel.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-trigger-b4-dl_1.4.19-5+lenny1_armel.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-magnet_1.4.19-5+lenny1_armel.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd_1.4.19-5+lenny1_armel.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-mysql-vhost_1.4.19-5+lenny1_armel.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-cml_1.4.19-5+lenny1_armel.deb
HP Precision:: http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-trigger-b4-dl_1.4.19-5+lenny1_hppa.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-mysql-vhost_1.4.19-5+lenny1_hppa.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-webdav_1.4.19-5+lenny1_hppa.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd_1.4.19-5+lenny1_hppa.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-cml_1.4.19-5+lenny1_hppa.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-magnet_1.4.19-5+lenny1_hppa.deb
Intel IA-32:: http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-magnet_1.4.19-5+lenny1_i386.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-trigger-b4-dl_1.4.19-5+lenny1_i386.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd_1.4.19-5+lenny1_i386.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-mysql-vhost_1.4.19-5+lenny1_i386.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-webdav_1.4.19-5+lenny1_i386.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-cml_1.4.19-5+lenny1_i386.deb
Intel IA-64:: http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-magnet_1.4.19-5+lenny1_ia64.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd_1.4.19-5+lenny1_ia64.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-webdav_1.4.19-5+lenny1_ia64.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-cml_1.4.19-5+lenny1_ia64.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-mysql-vhost_1.4.19-5+lenny1_ia64.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-trigger-b4-dl_1.4.19-5+lenny1_ia64.deb
Big-endian MIPS:: http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-cml_1.4.19-5+lenny1_mips.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-magnet_1.4.19-5+lenny1_mips.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd_1.4.19-5+lenny1_mips.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-webdav_1.4.19-5+lenny1_mips.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-trigger-b4-dl_1.4.19-5+lenny1_mips.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-mysql-vhost_1.4.19-5+lenny1_mips.deb
PowerPC:: http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-trigger-b4-dl_1.4.19-5+lenny1_powerpc.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-mysql-vhost_1.4.19-5+lenny1_powerpc.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-webdav_1.4.19-5+lenny1_powerpc.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd_1.4.19-5+lenny1_powerpc.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-cml_1.4.19-5+lenny1_powerpc.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-magnet_1.4.19-5+lenny1_powerpc.deb
IBM S/390:: http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd_1.4.19-5+lenny1_s390.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-webdav_1.4.19-5+lenny1_s390.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-cml_1.4.19-5+lenny1_s390.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-mysql-vhost_1.4.19-5+lenny1_s390.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-trigger-b4-dl_1.4.19-5+lenny1_s390.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-magnet_1.4.19-5+lenny1_s390.deb
Sun Sparc:: http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-cml_1.4.19-5+lenny1_sparc.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd_1.4.19-5+lenny1_sparc.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-magnet_1.4.19-5+lenny1_sparc.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-trigger-b4-dl_1.4.19-5+lenny1_sparc.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-mysql-vhost_1.4.19-5+lenny1_sparc.deb; http://security.debian.org/pool/updates/main/l/lighttpd/lighttpd-mod-webdav_1.4.19-5+lenny1_sparc.deb

MD5-kontrollsummor för dessa filer finns i originalbulletinen.