Debians sikkerhedsbulletin

DSA-1795-1 ldns -- bufferoverløb

Rapporteret den:

7. maj 2009

Berørte pakker:

ldns

Sårbar:

Referencer i sikkerhedsdatabaser:

I Mitres CVE-ordbog: CVE-2009-1086.

Yderligere oplysninger:

Stefan Kaltenbrunner opdagede at ldns, et bibliotek og værktøjssæt til at lette DNS-programmering, ikke på korrekt vis implementerede en kontrol af buffergrænser i sin RR DNS-post-fortolker. Svagheden kunne gør det muligt for en heapbuffer at løbe over, hvis en ondsindet fremstillet DNS-post blev fortolket, potentielt gørende det muligt at udføre vilkårlig kode. Omfanget af sårbarheden varierede alt efter i hvilken kontekst, ldns blev anvendt, og kunne enten være en lokal eller fjern angrebsvinkel.

Den gamle stabile distribution (etch) er ikke påvirket af dette problem.

I den stabile distribution (lenny), er dette problem rettet i version 1.4.0-1+lenny1.

I den ustabile distribution (sid), er dette problem rettet i version 1.5.1-1.

Vi anbefaler at du opgraderer dine ldns-pakker.

Rettet i:

Debian GNU/Linux 5.0 (lenny)

Kildekode:: http://security.debian.org/pool/updates/main/l/ldns/ldns_1.4.0.orig.tar.gz; http://security.debian.org/pool/updates/main/l/ldns/ldns_1.4.0-1+lenny1.diff.gz; http://security.debian.org/pool/updates/main/l/ldns/ldns_1.4.0-1+lenny1.dsc
Alpha:: http://security.debian.org/pool/updates/main/l/ldns/ldnsutils_1.4.0-1+lenny1_alpha.deb; http://security.debian.org/pool/updates/main/l/ldns/libldns-dev_1.4.0-1+lenny1_alpha.deb; http://security.debian.org/pool/updates/main/l/ldns/libldns1_1.4.0-1+lenny1_alpha.deb
AMD64:: http://security.debian.org/pool/updates/main/l/ldns/libldns-dev_1.4.0-1+lenny1_amd64.deb; http://security.debian.org/pool/updates/main/l/ldns/libldns1_1.4.0-1+lenny1_amd64.deb; http://security.debian.org/pool/updates/main/l/ldns/ldnsutils_1.4.0-1+lenny1_amd64.deb
ARM:: http://security.debian.org/pool/updates/main/l/ldns/libldns-dev_1.4.0-1+lenny1_arm.deb; http://security.debian.org/pool/updates/main/l/ldns/ldnsutils_1.4.0-1+lenny1_arm.deb; http://security.debian.org/pool/updates/main/l/ldns/libldns1_1.4.0-1+lenny1_arm.deb
ARM EABI:: http://security.debian.org/pool/updates/main/l/ldns/libldns1_1.4.0-1+lenny1_armel.deb; http://security.debian.org/pool/updates/main/l/ldns/libldns-dev_1.4.0-1+lenny1_armel.deb; http://security.debian.org/pool/updates/main/l/ldns/ldnsutils_1.4.0-1+lenny1_armel.deb
HP Precision:: http://security.debian.org/pool/updates/main/l/ldns/libldns1_1.4.0-1+lenny1_hppa.deb; http://security.debian.org/pool/updates/main/l/ldns/libldns-dev_1.4.0-1+lenny1_hppa.deb; http://security.debian.org/pool/updates/main/l/ldns/ldnsutils_1.4.0-1+lenny1_hppa.deb
Intel IA-32:: http://security.debian.org/pool/updates/main/l/ldns/libldns1_1.4.0-1+lenny1_i386.deb; http://security.debian.org/pool/updates/main/l/ldns/ldnsutils_1.4.0-1+lenny1_i386.deb; http://security.debian.org/pool/updates/main/l/ldns/libldns-dev_1.4.0-1+lenny1_i386.deb
Intel IA-64:: http://security.debian.org/pool/updates/main/l/ldns/libldns-dev_1.4.0-1+lenny1_ia64.deb; http://security.debian.org/pool/updates/main/l/ldns/libldns1_1.4.0-1+lenny1_ia64.deb; http://security.debian.org/pool/updates/main/l/ldns/ldnsutils_1.4.0-1+lenny1_ia64.deb
Big-endian MIPS:: http://security.debian.org/pool/updates/main/l/ldns/ldnsutils_1.4.0-1+lenny1_mips.deb; http://security.debian.org/pool/updates/main/l/ldns/libldns-dev_1.4.0-1+lenny1_mips.deb; http://security.debian.org/pool/updates/main/l/ldns/libldns1_1.4.0-1+lenny1_mips.deb
Little-endian MIPS:: http://security.debian.org/pool/updates/main/l/ldns/libldns-dev_1.4.0-1+lenny1_mipsel.deb; http://security.debian.org/pool/updates/main/l/ldns/ldnsutils_1.4.0-1+lenny1_mipsel.deb; http://security.debian.org/pool/updates/main/l/ldns/libldns1_1.4.0-1+lenny1_mipsel.deb
PowerPC:: http://security.debian.org/pool/updates/main/l/ldns/libldns1_1.4.0-1+lenny1_powerpc.deb; http://security.debian.org/pool/updates/main/l/ldns/ldnsutils_1.4.0-1+lenny1_powerpc.deb; http://security.debian.org/pool/updates/main/l/ldns/libldns-dev_1.4.0-1+lenny1_powerpc.deb
IBM S/390:: http://security.debian.org/pool/updates/main/l/ldns/libldns-dev_1.4.0-1+lenny1_s390.deb; http://security.debian.org/pool/updates/main/l/ldns/ldnsutils_1.4.0-1+lenny1_s390.deb; http://security.debian.org/pool/updates/main/l/ldns/libldns1_1.4.0-1+lenny1_s390.deb
Sun Sparc:: http://security.debian.org/pool/updates/main/l/ldns/libldns1_1.4.0-1+lenny1_sparc.deb; http://security.debian.org/pool/updates/main/l/ldns/libldns-dev_1.4.0-1+lenny1_sparc.deb; http://security.debian.org/pool/updates/main/l/ldns/ldnsutils_1.4.0-1+lenny1_sparc.deb

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