Debians sikkerhedsbulletin

DSA-131-1 apache -- fjern-overbelastning/udnyttelse

Rapporteret den:

19. jun 2002

Berørte pakker:

Sårbar:

Referencer i sikkerhedsdatabaser:

I Bugtraq-databasen (hos SecurityFocus): BugTraq-id 5033.
I Mitres CVE-ordbog: CVE-2002-0392.
CERTs noter om sårbarheder, bulletiner og hændelser: CA-2002-17, VU#944335.

Yderligere oplysninger:

Mark Litchfield har fundet et overbelastningsangreb ("denial of service") i webserveren Apache. Mens Apache Software Foundation undersøgte problemet, opdatede de at koden til håndtering af forkerte forespørgsler som anvender "chunked encoding" også kunne give mulighed for udførelse af vilkårlig kode på 64-bits arkitekturer.

Dette er rettet i version 1.3.9-14.1 i Debians apache-pakke, foruden i opstrømsversionerne 1.3.26 og 2.0.37. Vi anbefaler kraftigt at du omgående opgraderer din apache-pakke.

Pakkeopgraderingen genstarter ikke automatisk apache-serveren, dette skal gøres manuelt. Kontrollér at din opsætning er korrekt ("apachectl configtest" kontrollerer det for dig) og genstart den ved hjælp af "/etc/init.d/apache restart".

Rettet i:

Debian GNU/Linux 2.2 (potato)

Kildekode:: http://security.debian.org/dists/stable/updates/main/source/apache_1.3.9-14.1.diff.gz; http://security.debian.org/dists/stable/updates/main/source/apache_1.3.9-14.1.dsc; http://security.debian.org/dists/stable/updates/main/source/apache_1.3.9.orig.tar.gz
Arkitekturuafhængig komponent:: http://security.debian.org/dists/stable/updates/main/binary-all/apache-doc_1.3.9-14.1_all.deb
Alpha:: http://security.debian.org/dists/stable/updates/main/binary-alpha/apache-common_1.3.9-14.1_alpha.deb; http://security.debian.org/dists/stable/updates/main/binary-alpha/apache-dev_1.3.9-14.1_alpha.deb; http://security.debian.org/dists/stable/updates/main/binary-alpha/apache_1.3.9-14.1_alpha.deb
ARM:: http://security.debian.org/dists/stable/updates/main/binary-arm/apache-common_1.3.9-14.1_arm.deb; http://security.debian.org/dists/stable/updates/main/binary-arm/apache-dev_1.3.9-14.1_arm.deb; http://security.debian.org/dists/stable/updates/main/binary-arm/apache_1.3.9-14.1_arm.deb
Intel IA-32:: http://security.debian.org/dists/stable/updates/main/binary-i386/apache-common_1.3.9-14.1_i386.deb; http://security.debian.org/dists/stable/updates/main/binary-i386/apache-dev_1.3.9-14.1_i386.deb; http://security.debian.org/dists/stable/updates/main/binary-i386/apache_1.3.9-14.1_i386.deb
Motorola 680x0:: http://security.debian.org/dists/stable/updates/main/binary-m68k/apache-common_1.3.9-14.1_m68k.deb; http://security.debian.org/dists/stable/updates/main/binary-m68k/apache-dev_1.3.9-14.1_m68k.deb; http://security.debian.org/dists/stable/updates/main/binary-m68k/apache_1.3.9-14.1_m68k.deb
PowerPC:: http://security.debian.org/dists/stable/updates/main/binary-powerpc/apache-common_1.3.9-14.1_powerpc.deb; http://security.debian.org/dists/stable/updates/main/binary-powerpc/apache-dev_1.3.9-14.1_powerpc.deb; http://security.debian.org/dists/stable/updates/main/binary-powerpc/apache_1.3.9-14.1_powerpc.deb
Sun Sparc:: http://security.debian.org/dists/stable/updates/main/binary-sparc/apache-common_1.3.9-14.1_sparc.deb; http://security.debian.org/dists/stable/updates/main/binary-sparc/apache-dev_1.3.9-14.1_sparc.deb; http://security.debian.org/dists/stable/updates/main/binary-sparc/apache_1.3.9-14.1_sparc.deb

MD5-kontrolsummer for de listede filer findes i den originale sikkerhedsbulletin.