Debians sikkerhedsbulletin

DSA-438-1 linux-kernel-2.4.18-alpha+i386+powerpc -- manglende kontrol af funktions returværdi

Rapporteret den:

18. feb 2004

Berørte pakker:

kernel-source-2.4.18
kernel-image-2.4.18-1-alpha
kernel-image-2.4.18-1-i386
kernel-image-2.4.18-i386bf
kernel-patch-2.4.18-powerpc

Sårbar:

Referencer i sikkerhedsdatabaser:

I Bugtraq-databasen (hos SecurityFocus): BugTraq-id 9686.
I Mitres CVE-ordbog: CVE-2004-0077.
CERTs noter om sårbarheder, bulletiner og hændelser: VU#981222.

Yderligere oplysninger:

Paul Starzetz og Wojciech Purczynski fra isec.pl har opdaget en kritisk sikkerhedssårbarhed i Linux' hukommelseshåndteringskode i systemkaldet mremap(2). På grund af manglende kontrol af interne funktioners returværdier kan en lokal angriber opnå root-rettigheder.

I den stabile distribution (woody) er dette problem rettet i version 2.4.18-14.2 af pakken kernel-source, version 2.4.18-14 af image-pakkerne til alpha, version 2.4.18-12.2 af image-pakkerne til i386, version 2.4.18-5woody7 af image-pakkerne til i386bf og version 2.4.18-1woody4 af image-pakkerne til powerpc.

Andre arkitekturer vil formentlig blive omtalt i separate bulletiner eller er ikke påvirkede (m68k).

I den ustabile distribution (sid) er dette problem rettet i version 2.4.24-3 af kildekodepakken, image-pakkerne til i386 og alpha og version 2.4.22-10 af image-pakkerne til powerpc.

Dette problem er også rettet i opstrømsudgaverne af Linux 2.4.25 og 2.6.3.

Vi anbefaler at du omgående opgraderer dine Linux-kerne-pakker.

Sårbarhedsmatrix for CAN-2004-0077.

Rettet i:

Debian GNU/Linux 3.0 (woody)

Kildekode:: http://security.debian.org/pool/updates/main/k/kernel-source-2.4.18/kernel-source-2.4.18_2.4.18-14.2.dsc; http://security.debian.org/pool/updates/main/k/kernel-source-2.4.18/kernel-source-2.4.18_2.4.18-14.2.diff.gz; http://security.debian.org/pool/updates/main/k/kernel-source-2.4.18/kernel-source-2.4.18_2.4.18.orig.tar.gz; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-alpha/kernel-image-2.4.18-1-alpha_2.4.18-14.dsc; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-alpha/kernel-image-2.4.18-1-alpha_2.4.18-14.tar.gz; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-image-2.4.18-1-i386_2.4.18-12.2.dsc; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-image-2.4.18-1-i386_2.4.18-12.2.tar.gz; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-i386bf/kernel-image-2.4.18-i386bf_2.4.18-5woody7.dsc; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-i386bf/kernel-image-2.4.18-i386bf_2.4.18-5woody7.tar.gz; http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-patch-2.4.18-powerpc_2.4.18-1woody4.dsc; http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-patch-2.4.18-powerpc_2.4.18-1woody4.tar.gz
Arkitekturuafhængig komponent:: http://security.debian.org/pool/updates/main/k/kernel-source-2.4.18/kernel-doc-2.4.18_2.4.18-14.2_all.deb; http://security.debian.org/pool/updates/main/k/kernel-source-2.4.18/kernel-source-2.4.18_2.4.18-14.2_all.deb; http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-patch-2.4.18-powerpc_2.4.18-1woody4_all.deb
Alpha:: http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-alpha/kernel-headers-2.4.18-1_2.4.18-14_alpha.deb; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-alpha/kernel-headers-2.4.18-1-generic_2.4.18-14_alpha.deb; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-alpha/kernel-headers-2.4.18-1-smp_2.4.18-14_alpha.deb; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-alpha/kernel-image-2.4.18-1-generic_2.4.18-14_alpha.deb; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-alpha/kernel-image-2.4.18-1-smp_2.4.18-14_alpha.deb
Intel IA-32:: http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-headers-2.4.18-1_2.4.18-12.2_i386.deb; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-headers-2.4.18-1-386_2.4.18-12.2_i386.deb; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-headers-2.4.18-1-586tsc_2.4.18-12.2_i386.deb; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-headers-2.4.18-1-686_2.4.18-12.2_i386.deb; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-headers-2.4.18-1-686-smp_2.4.18-12.2_i386.deb; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-headers-2.4.18-1-k6_2.4.18-12.2_i386.deb; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-headers-2.4.18-1-k7_2.4.18-12.2_i386.deb; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-image-2.4.18-1-386_2.4.18-12.2_i386.deb; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-image-2.4.18-1-586tsc_2.4.18-12.2_i386.deb; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-image-2.4.18-1-686_2.4.18-12.2_i386.deb; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-image-2.4.18-1-686-smp_2.4.18-12.2_i386.deb; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-image-2.4.18-1-k6_2.4.18-12.2_i386.deb; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-image-2.4.18-1-k7_2.4.18-12.2_i386.deb; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-pcmcia-modules-2.4.18-1-386_2.4.18-12.2_i386.deb; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-pcmcia-modules-2.4.18-1-586tsc_2.4.18-12.2_i386.deb; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-pcmcia-modules-2.4.18-1-686_2.4.18-12.2_i386.deb; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-pcmcia-modules-2.4.18-1-686-smp_2.4.18-12.2_i386.deb; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-pcmcia-modules-2.4.18-1-k6_2.4.18-12.2_i386.deb; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-pcmcia-modules-2.4.18-1-k7_2.4.18-12.2_i386.deb; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-i386bf/kernel-headers-2.4.18-bf2.4_2.4.18-5woody7_i386.deb; http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-i386bf/kernel-image-2.4.18-bf2.4_2.4.18-5woody7_i386.deb
PowerPC:: http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-headers-2.4.18_2.4.18-1woody4_powerpc.deb; http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-image-2.4.18-newpmac_2.4.18-1woody4_powerpc.deb; http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-image-2.4.18-powerpc_2.4.18-1woody4_powerpc.deb; http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-image-2.4.18-powerpc-smp_2.4.18-1woody4_powerpc.deb

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