Debians sikkerhedsbulletin

DSA-1841-1 git-core -- lammelsesangreb

Rapporteret den:
25. jul 2009
Berørte pakker:
git-core
Sårbar:
Ja
Referencer i sikkerhedsdatabaser:
I Debians fejlsporingssystem: Fejl 532935.
I Mitres CVE-ordbog: CVE-2009-2108.
Yderligere oplysninger:

Man opdagede at git-daemon, der er en del af git-core, et populært distribueret versionsstyringssystem, var sårbar over for lammelsesangreb (denial of service) forårsaget af en programmeringsfejl i håndtering af forespørgsler indeholdende ekstra ikke-genkendte parametre, hvilket medførte en uendelig løkke. Mens det ikke er et problem for dæmonen selv, da alle forespørgsler udløser en ny instans af git-daemon, vil det stadig medføre et meget højt CPU-forbrug og kan måske føre til lammelsesangrebsstilstande.

I den gamle stabile distribution (etch), er dette problem rettet i version 1.4.4.4-4+etch3.

I den stabile distribution (lenny), er dette problem rettet i version 1.5.6.5-3+lenny2.

I distributionen testing (squeeze), er dette problem rettet i version 1:1.6.3.3-1.

I den ustabile distribution (sid), er dette problem rettet i version 1:1.6.3.3-1.

Vi anbefaler at du opgraderer dine git-core-pakker.

Rettet i:

Debian GNU/Linux 4.0 (etch)

Kildekode:
http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-4+etch3.diff.gz
http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4.orig.tar.gz
http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-4+etch3.dsc
Arkitekturuafhængig komponent:
http://security.debian.org/pool/updates/main/g/git-core/gitweb_1.4.4.4-4+etch3_all.deb
http://security.debian.org/pool/updates/main/g/git-core/git-svn_1.4.4.4-4+etch3_all.deb
http://security.debian.org/pool/updates/main/g/git-core/git-cvs_1.4.4.4-4+etch3_all.deb
http://security.debian.org/pool/updates/main/g/git-core/git-doc_1.4.4.4-4+etch3_all.deb
http://security.debian.org/pool/updates/main/g/git-core/git-email_1.4.4.4-4+etch3_all.deb
http://security.debian.org/pool/updates/main/g/git-core/git-daemon-run_1.4.4.4-4+etch3_all.deb
http://security.debian.org/pool/updates/main/g/git-core/gitk_1.4.4.4-4+etch3_all.deb
http://security.debian.org/pool/updates/main/g/git-core/git-arch_1.4.4.4-4+etch3_all.deb
Alpha:
http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-4+etch3_alpha.deb
AMD64:
http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-4+etch3_amd64.deb
ARM:
http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-4+etch3_arm.deb
Intel IA-32:
http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-4+etch3_i386.deb
Intel IA-64:
http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-4+etch3_ia64.deb
Big-endian MIPS:
http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-4+etch3_mips.deb
PowerPC:
http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-4+etch3_powerpc.deb
IBM S/390:
http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-4+etch3_s390.deb
Sun Sparc:
http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-4+etch3_sparc.deb

Debian GNU/Linux 5.0 (lenny)

Kildekode:
http://security.debian.org/pool/updates/main/g/git-core/git-core_1.5.6.5-3+lenny2.diff.gz
http://security.debian.org/pool/updates/main/g/git-core/git-core_1.5.6.5.orig.tar.gz
http://security.debian.org/pool/updates/main/g/git-core/git-core_1.5.6.5-3+lenny2.dsc
Arkitekturuafhængig komponent:
http://security.debian.org/pool/updates/main/g/git-core/git-gui_1.5.6.5-3+lenny2_all.deb
http://security.debian.org/pool/updates/main/g/git-core/git-arch_1.5.6.5-3+lenny2_all.deb
http://security.debian.org/pool/updates/main/g/git-core/gitk_1.5.6.5-3+lenny2_all.deb
http://security.debian.org/pool/updates/main/g/git-core/git-email_1.5.6.5-3+lenny2_all.deb
http://security.debian.org/pool/updates/main/g/git-core/git-svn_1.5.6.5-3+lenny2_all.deb
http://security.debian.org/pool/updates/main/g/git-core/git-daemon-run_1.5.6.5-3+lenny2_all.deb
http://security.debian.org/pool/updates/main/g/git-core/gitweb_1.5.6.5-3+lenny2_all.deb
http://security.debian.org/pool/updates/main/g/git-core/git-doc_1.5.6.5-3+lenny2_all.deb
http://security.debian.org/pool/updates/main/g/git-core/git-cvs_1.5.6.5-3+lenny2_all.deb
AMD64:
http://security.debian.org/pool/updates/main/g/git-core/git-core_1.5.6.5-3+lenny2_amd64.deb
ARM:
http://security.debian.org/pool/updates/main/g/git-core/git-core_1.5.6.5-3+lenny2_arm.deb
Intel IA-32:
http://security.debian.org/pool/updates/main/g/git-core/git-core_1.5.6.5-3+lenny2_i386.deb
Intel IA-64:
http://security.debian.org/pool/updates/main/g/git-core/git-core_1.5.6.5-3+lenny2_ia64.deb
Big-endian MIPS:
http://security.debian.org/pool/updates/main/g/git-core/git-core_1.5.6.5-3+lenny2_mips.deb
Little-endian MIPS:
http://security.debian.org/pool/updates/main/g/git-core/git-core_1.5.6.5-3+lenny2_mipsel.deb
IBM S/390:
http://security.debian.org/pool/updates/main/g/git-core/git-core_1.5.6.5-3+lenny2_s390.deb
Sun Sparc:
http://security.debian.org/pool/updates/main/g/git-core/git-core_1.5.6.5-3+lenny2_sparc.deb

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