Alerta de Segurança Debian

DSA-324-1 ethereal -- várias vulnerabilidades

Data do Alerta:

18 Jun 2003

Pacotes Afetados:

Vulnerável:

Sim

Referência à base de dados de segurança:

Na base de dados do BugTraq (na SecurityFocus): ID BugTraq 7878, ID BugTraq 7880, ID BugTraq 7881, ID BugTraq 7883.
No dicionário CVE do Mitre: CVE-2003-0428, CVE-2003-0429, CVE-2003-0431, CVE-2003-0432.

Informações adicionais:

Vários dissectores de pacotes no ethereal contem erros no manuseio de strings que podem ser explorados usando pacotes trabalhados maliciosamente para levar o ethereal a consumir quantidades excessivas de memória, cair, ou executar código arbitrariamente.

Essas vulnerabilidades foram anunciadas no seguinte alerta de segurança do Ethereal:

http://www.ethereal.com/appnotes/enpa-sa-00010.html

O Ethereal 0.9.4 no Debian 3.0 (woody) é afetado pela maioria dos problemas descrevidos no alerta, incluindo:

* O dissector DCERPC pode tentar alocar muita memória enquanto tenta decifrar uma string NDR.
* Tamanhos errados de prefixo IPv4 ou IPv6 podem causar um estouro no dissector OSI.
* A rotina tvb_get_nstringz0() manuseia incorretamente um um tamanho de buffer zerado.
* Os dissectores BGP, WTP, DNS, 802.11, ISAKMP, WSP, CLNP, e ISIS manuseiam strings de forma inapropriada.

Os seguintes problemas NÃO afetam essa versão:

* O dissector SPNEGO pode dar uma falha de segmentação enquanto tenta analisar um valor ASN.1 inválido.
* O dissector RMI manuseia strings de forma inapropriada.

Para a distribuição estável (woody) esses problemas foram corrigidos na versão 0.9.4-1woody5.

Para a antiga distribuição estável (potato) esses problemas serão corrigidos num alerta futuro.

Para a distribuição instável (sid) esses problemas foram corrigidos na versão 0.9.13-1.

Nós recomendamos que atualize seu pacote ethereal.

Corrigido em:

Debian GNU/Linux 3.0 (woody)

Fonte:: http://security.debian.org/pool/updates/main/e/ethereal/ethereal_0.9.4-1woody5.dsc; http://security.debian.org/pool/updates/main/e/ethereal/ethereal_0.9.4-1woody5.diff.gz; http://security.debian.org/pool/updates/main/e/ethereal/ethereal_0.9.4.orig.tar.gz
Alpha:: http://security.debian.org/pool/updates/main/e/ethereal/ethereal_0.9.4-1woody5_alpha.deb; http://security.debian.org/pool/updates/main/e/ethereal/ethereal-common_0.9.4-1woody5_alpha.deb; http://security.debian.org/pool/updates/main/e/ethereal/ethereal-dev_0.9.4-1woody5_alpha.deb; http://security.debian.org/pool/updates/main/e/ethereal/tethereal_0.9.4-1woody5_alpha.deb
ARM:: http://security.debian.org/pool/updates/main/e/ethereal/ethereal_0.9.4-1woody5_arm.deb; http://security.debian.org/pool/updates/main/e/ethereal/ethereal-common_0.9.4-1woody5_arm.deb; http://security.debian.org/pool/updates/main/e/ethereal/ethereal-dev_0.9.4-1woody5_arm.deb; http://security.debian.org/pool/updates/main/e/ethereal/tethereal_0.9.4-1woody5_arm.deb
Intel IA-32:: http://security.debian.org/pool/updates/main/e/ethereal/ethereal_0.9.4-1woody5_i386.deb; http://security.debian.org/pool/updates/main/e/ethereal/ethereal-common_0.9.4-1woody5_i386.deb; http://security.debian.org/pool/updates/main/e/ethereal/ethereal-dev_0.9.4-1woody5_i386.deb; http://security.debian.org/pool/updates/main/e/ethereal/tethereal_0.9.4-1woody5_i386.deb
Intel IA-64:: http://security.debian.org/pool/updates/main/e/ethereal/ethereal_0.9.4-1woody5_ia64.deb; http://security.debian.org/pool/updates/main/e/ethereal/ethereal-common_0.9.4-1woody5_ia64.deb; http://security.debian.org/pool/updates/main/e/ethereal/ethereal-dev_0.9.4-1woody5_ia64.deb; http://security.debian.org/pool/updates/main/e/ethereal/tethereal_0.9.4-1woody5_ia64.deb
HPPA:: http://security.debian.org/pool/updates/main/e/ethereal/ethereal_0.9.4-1woody5_hppa.deb; http://security.debian.org/pool/updates/main/e/ethereal/ethereal-common_0.9.4-1woody5_hppa.deb; http://security.debian.org/pool/updates/main/e/ethereal/ethereal-dev_0.9.4-1woody5_hppa.deb; http://security.debian.org/pool/updates/main/e/ethereal/tethereal_0.9.4-1woody5_hppa.deb
Motorola 680x0:: http://security.debian.org/pool/updates/main/e/ethereal/ethereal_0.9.4-1woody5_m68k.deb; http://security.debian.org/pool/updates/main/e/ethereal/ethereal-common_0.9.4-1woody5_m68k.deb; http://security.debian.org/pool/updates/main/e/ethereal/ethereal-dev_0.9.4-1woody5_m68k.deb; http://security.debian.org/pool/updates/main/e/ethereal/tethereal_0.9.4-1woody5_m68k.deb
Big endian MIPS:: http://security.debian.org/pool/updates/main/e/ethereal/ethereal_0.9.4-1woody5_mips.deb; http://security.debian.org/pool/updates/main/e/ethereal/ethereal-common_0.9.4-1woody5_mips.deb; http://security.debian.org/pool/updates/main/e/ethereal/ethereal-dev_0.9.4-1woody5_mips.deb; http://security.debian.org/pool/updates/main/e/ethereal/tethereal_0.9.4-1woody5_mips.deb
Little endian MIPS:: http://security.debian.org/pool/updates/main/e/ethereal/ethereal_0.9.4-1woody5_mipsel.deb; http://security.debian.org/pool/updates/main/e/ethereal/ethereal-common_0.9.4-1woody5_mipsel.deb; http://security.debian.org/pool/updates/main/e/ethereal/ethereal-dev_0.9.4-1woody5_mipsel.deb; http://security.debian.org/pool/updates/main/e/ethereal/tethereal_0.9.4-1woody5_mipsel.deb
PowerPC:: http://security.debian.org/pool/updates/main/e/ethereal/ethereal_0.9.4-1woody5_powerpc.deb; http://security.debian.org/pool/updates/main/e/ethereal/ethereal-common_0.9.4-1woody5_powerpc.deb; http://security.debian.org/pool/updates/main/e/ethereal/ethereal-dev_0.9.4-1woody5_powerpc.deb; http://security.debian.org/pool/updates/main/e/ethereal/tethereal_0.9.4-1woody5_powerpc.deb
IBM S/390:: http://security.debian.org/pool/updates/main/e/ethereal/ethereal_0.9.4-1woody5_s390.deb; http://security.debian.org/pool/updates/main/e/ethereal/ethereal-common_0.9.4-1woody5_s390.deb; http://security.debian.org/pool/updates/main/e/ethereal/ethereal-dev_0.9.4-1woody5_s390.deb; http://security.debian.org/pool/updates/main/e/ethereal/tethereal_0.9.4-1woody5_s390.deb
Sun Sparc:: http://security.debian.org/pool/updates/main/e/ethereal/ethereal_0.9.4-1woody5_sparc.deb; http://security.debian.org/pool/updates/main/e/ethereal/ethereal-common_0.9.4-1woody5_sparc.deb; http://security.debian.org/pool/updates/main/e/ethereal/ethereal-dev_0.9.4-1woody5_sparc.deb; http://security.debian.org/pool/updates/main/e/ethereal/tethereal_0.9.4-1woody5_sparc.deb

Checksums MD5 dos arquivos listados estão disponíveis no alerta original.