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DSA-1581-1 gnutls13 -- flere sårbarheder

Rapporteret den:

20. maj 2008

Berørte pakker:

gnutls13

Sårbar:

Referencer i sikkerhedsdatabaser:

I Mitres CVE-ordbog: CVE-2008-1948, CVE-2008-1949, CVE-2008-1950.

Yderligere oplysninger:

Flere fjernudbytbare sårbarheder er opdaget i GNUTLS, en implementering af protokolsuiten SSL/TLS.

Bemærk: Pakken libgnutls13, der leverer GNUTLS-biblioteket, indeholder ikke logik til automatisk genstart af potentielt påvirkede tjenester. Du er nødt til manuelt at genstarte påvirkede tjenester (primært Exim, vha. /etc/init.d/exim4 restart) efter opdateringen er udført, for at ændringerne kan træde hele i kraft. Alternativt kan du genstarte dit system.

Projektet Common Vulnerabilities and Exposures har registreret følgende problemer:

CVE-2008-1948
Et præ-autentifikations-heapoverløb i forbindelse med for stor session resumption-data kunne føre til udførelse af vilkårlig kode.
CVE-2008-1949
Gentagne klient-halloer kunne være til en præ-autentifikations-lammelsesangrebstilstand (denial of service) på grund af en null pointer-dereference.
CVE-2008-1950
Dekoding af cipher-padding med en ugyldig recordlængde kunne måske få GNUTLS til at læse hukommelse ud over slutningen af den modtagne record, førende til en præ-autentifikations-lammelsesangrebstilstand.

I den stabile distribution (etch), er disse problemer rettet i version 1.4.4-3+etch1. (Opbygninger til arkitekturen arm er pt. ikke tilgængelige og vil blive frigivet senere.)

I den ustabile distribution (sid), vil disse problemer snart blive rettet.

Vi anbefaler at du opgraderer dine GNUTLS-pakker.

Rettet i:

Debian GNU/Linux 4.0 (etch)

Kildekode:: http://security.debian.org/pool/updates/main/g/gnutls13/gnutls13_1.4.4-3+etch1.diff.gz; http://security.debian.org/pool/updates/main/g/gnutls13/gnutls13_1.4.4.orig.tar.gz; http://security.debian.org/pool/updates/main/g/gnutls13/gnutls13_1.4.4-3+etch1.dsc
Arkitekturuafhængig komponent:: http://security.debian.org/pool/updates/main/g/gnutls13/gnutls-doc_1.4.4-3+etch1_all.deb
Alpha:: http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13_1.4.4-3+etch1_alpha.deb; http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13-dbg_1.4.4-3+etch1_alpha.deb; http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls-dev_1.4.4-3+etch1_alpha.deb; http://security.debian.org/pool/updates/main/g/gnutls13/gnutls-bin_1.4.4-3+etch1_alpha.deb
AMD64:: http://security.debian.org/pool/updates/main/g/gnutls13/gnutls-bin_1.4.4-3+etch1_amd64.deb; http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13-dbg_1.4.4-3+etch1_amd64.deb; http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13_1.4.4-3+etch1_amd64.deb; http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls-dev_1.4.4-3+etch1_amd64.deb
HP Precision:: http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13-dbg_1.4.4-3+etch1_hppa.deb; http://security.debian.org/pool/updates/main/g/gnutls13/gnutls-bin_1.4.4-3+etch1_hppa.deb; http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13_1.4.4-3+etch1_hppa.deb; http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls-dev_1.4.4-3+etch1_hppa.deb
Intel IA-32:: http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls-dev_1.4.4-3+etch1_i386.deb; http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13_1.4.4-3+etch1_i386.deb; http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13-dbg_1.4.4-3+etch1_i386.deb; http://security.debian.org/pool/updates/main/g/gnutls13/gnutls-bin_1.4.4-3+etch1_i386.deb
Intel IA-64:: http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls-dev_1.4.4-3+etch1_ia64.deb; http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13-dbg_1.4.4-3+etch1_ia64.deb; http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13_1.4.4-3+etch1_ia64.deb; http://security.debian.org/pool/updates/main/g/gnutls13/gnutls-bin_1.4.4-3+etch1_ia64.deb
Big-endian MIPS:: http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13-dbg_1.4.4-3+etch1_mips.deb; http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls-dev_1.4.4-3+etch1_mips.deb; http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13_1.4.4-3+etch1_mips.deb; http://security.debian.org/pool/updates/main/g/gnutls13/gnutls-bin_1.4.4-3+etch1_mips.deb
Little-endian MIPS:: http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13-dbg_1.4.4-3+etch1_mipsel.deb; http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls-dev_1.4.4-3+etch1_mipsel.deb; http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13_1.4.4-3+etch1_mipsel.deb; http://security.debian.org/pool/updates/main/g/gnutls13/gnutls-bin_1.4.4-3+etch1_mipsel.deb
PowerPC:: http://security.debian.org/pool/updates/main/g/gnutls13/gnutls-bin_1.4.4-3+etch1_powerpc.deb; http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13_1.4.4-3+etch1_powerpc.deb; http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13-dbg_1.4.4-3+etch1_powerpc.deb; http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls-dev_1.4.4-3+etch1_powerpc.deb
IBM S/390:: http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13-dbg_1.4.4-3+etch1_s390.deb; http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13_1.4.4-3+etch1_s390.deb; http://security.debian.org/pool/updates/main/g/gnutls13/gnutls-bin_1.4.4-3+etch1_s390.deb; http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls-dev_1.4.4-3+etch1_s390.deb
Sun Sparc:: http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13-dbg_1.4.4-3+etch1_sparc.deb; http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13_1.4.4-3+etch1_sparc.deb; http://security.debian.org/pool/updates/main/g/gnutls13/gnutls-bin_1.4.4-3+etch1_sparc.deb; http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls-dev_1.4.4-3+etch1_sparc.deb

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