Debians sikkerhedsbulletin

DSA-295-1 pptpd -- bufferoverløb

Rapporteret den:
30. apr 2003
Berørte pakker:
pptpd
Sårbar:
Ja
Referencer i sikkerhedsdatabaser:
I Bugtraq-databasen (hos SecurityFocus): BugTraq-id 7316.
I Mitres CVE-ordbog: CVE-2003-0213.
Yderligere oplysninger:

Timo Sirainen har opdaget en sårbarhed i pptpd, en "Point to Point Tunneling Server", som implementerer PPTP-over-IPSEC og normalt anvendes til at oprette virtuelle private netværk (VPN). Ved angivelse af en lille pakkelængde, kunne en angriber få en buffer til at løbe over og udføre kode under den brugerid, som kører pptpd, formentlig root. En udnyttelse af dette problem er allerede i omløb.

I den stabile distribution (woody) er dette problem rettet i version 1.1.2-1.4.

I den gamle stabile distribution (potato) er dette problem rettet i version 1.0.0-4.2.

I den ustabile distribution (sid) er dette problem rettet i version 1.1.4-0.b3.2.

Vi anbefaler at du omgående opgraderer din pptpd-pakke.

Rettet i:

Debian GNU/Linux 2.2 (potato)

Kildekode:
http://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.0.0-4.2.dsc
http://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.0.0-4.2.diff.gz
http://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.0.0.orig.tar.gz
Alpha:
http://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.0.0-4.2_alpha.deb
ARM:
http://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.0.0-4.2_arm.deb
Intel IA-32:
http://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.0.0-4.2_i386.deb
Motorola 680x0:
http://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.0.0-4.2_m68k.deb
PowerPC:
http://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.0.0-4.2_powerpc.deb
Sun Sparc:
http://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.0.0-4.2_sparc.deb

Debian GNU/Linux 3.0 (woody)

Kildekode:
http://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.1.2-1.4.dsc
http://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.1.2-1.4.diff.gz
http://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.1.2.orig.tar.gz
Alpha:
http://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.1.2-1.4_alpha.deb
ARM:
http://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.1.2-1.4_arm.deb
Intel IA-32:
http://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.1.2-1.4_i386.deb
Intel IA-64:
http://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.1.2-1.4_ia64.deb
HPPA:
http://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.1.2-1.4_hppa.deb
Motorola 680x0:
http://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.1.2-1.4_m68k.deb
Big endian MIPS:
http://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.1.2-1.4_mips.deb
Little endian MIPS:
http://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.1.2-1.4_mipsel.deb
PowerPC:
http://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.1.2-1.4_powerpc.deb
IBM S/390:
http://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.1.2-1.4_s390.deb
Sun Sparc:
http://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.1.2-1.4_sparc.deb

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