Debians sikkerhedsbulletin

DSA-556-2 netkit-telnet -- ugyldig free(3)

Rapporteret den:

18. okt 2004

Berørte pakker:

netkit-telnet

Sårbar:

Referencer i sikkerhedsdatabaser:

I Debians fejlsporingssystem: Fejl 273694.
I Mitres CVE-ordbog: CVE-2004-0911.

Yderligere oplysninger:

Michal Zalewski har opdaget en fejl i netkit-telnet-serveren (telnetd) hvorved en fjernangriber kunne forårsage at telnetd-processen frigav en ugyldig pointer. Dette fik telnet-serverprocessen til at gå ned, hvilket medførte et ukompliceret lammelsesangreb (inetd slår tjenesten fra hvis telnetd gentagne gange går ned), eller muligvis udførelse af vilkårlig kode med rettighederne hørende til telnetd-processen (som standard brugeren "telnetd").

I den stabile distribution (woody) er dette problem rettet i version 0.17-18woody2.

I den ustabile distribution (sid) er dette problem rettet i version 0.17-26.

Vi anbefaler at du opgraderer din netkit-telnet-pakke.

Rettet i:

Debian GNU/Linux 3.0 (woody)

Kildekode:: http://security.debian.org/pool/updates/main/n/netkit-telnet/netkit-telnet_0.17-18woody2.dsc; http://security.debian.org/pool/updates/main/n/netkit-telnet/netkit-telnet_0.17-18woody2.diff.gz; http://security.debian.org/pool/updates/main/n/netkit-telnet/netkit-telnet_0.17.orig.tar.gz
Alpha:: http://security.debian.org/pool/updates/main/n/netkit-telnet/telnet_0.17-18woody2_alpha.deb; http://security.debian.org/pool/updates/main/n/netkit-telnet/telnetd_0.17-18woody2_alpha.deb
ARM:: http://security.debian.org/pool/updates/main/n/netkit-telnet/telnet_0.17-18woody2_arm.deb; http://security.debian.org/pool/updates/main/n/netkit-telnet/telnetd_0.17-18woody2_arm.deb
Intel IA-32:: http://security.debian.org/pool/updates/main/n/netkit-telnet/telnet_0.17-18woody2_i386.deb; http://security.debian.org/pool/updates/main/n/netkit-telnet/telnetd_0.17-18woody2_i386.deb
Intel IA-64:: http://security.debian.org/pool/updates/main/n/netkit-telnet/telnet_0.17-18woody2_ia64.deb; http://security.debian.org/pool/updates/main/n/netkit-telnet/telnetd_0.17-18woody2_ia64.deb
HPPA:: http://security.debian.org/pool/updates/main/n/netkit-telnet/telnet_0.17-18woody2_hppa.deb; http://security.debian.org/pool/updates/main/n/netkit-telnet/telnetd_0.17-18woody2_hppa.deb
Motorola 680x0:: http://security.debian.org/pool/updates/main/n/netkit-telnet/telnet_0.17-18woody2_m68k.deb; http://security.debian.org/pool/updates/main/n/netkit-telnet/telnetd_0.17-18woody2_m68k.deb
Big endian MIPS:: http://security.debian.org/pool/updates/main/n/netkit-telnet/telnet_0.17-18woody2_mips.deb; http://security.debian.org/pool/updates/main/n/netkit-telnet/telnetd_0.17-18woody2_mips.deb
Little endian MIPS:: http://security.debian.org/pool/updates/main/n/netkit-telnet/telnet_0.17-18woody2_mipsel.deb; http://security.debian.org/pool/updates/main/n/netkit-telnet/telnetd_0.17-18woody2_mipsel.deb
PowerPC:: http://security.debian.org/pool/updates/main/n/netkit-telnet/telnet_0.17-18woody2_powerpc.deb; http://security.debian.org/pool/updates/main/n/netkit-telnet/telnetd_0.17-18woody2_powerpc.deb
IBM S/390:: http://security.debian.org/pool/updates/main/n/netkit-telnet/telnet_0.17-18woody2_s390.deb; http://security.debian.org/pool/updates/main/n/netkit-telnet/telnetd_0.17-18woody2_s390.deb
Sun Sparc:: http://security.debian.org/pool/updates/main/n/netkit-telnet/telnet_0.17-18woody2_sparc.deb; http://security.debian.org/pool/updates/main/n/netkit-telnet/telnetd_0.17-18woody2_sparc.deb

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