[SEGURANCA] [DSA 045-1] exploit remoto no ntp consertado

[Carlos Laviola <claviola@ajato.com.br>]

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Debian Security Advisory DSA-045-1                       security@debian.org
http://www.debian.org/security/                                Michael Stone
April 5, 2001
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Pacote: ntp
Tipo de problema: exploit remoto, provendo acesso como root
Específico ao Debian: não

Przemyslaw Frasunek <venglin@FREEBSD.LUBLIN.PL> informa que daemons de ntp como
o incluso no Debian GNU/Linux são vulneráveis a um "buffer overflow" que pode
dar acesso remoto como root. Essa falha foi corrigida no Debian 2.2 (potato) na
versão 4.0.99g-2potato1 do pacote ntp.

Recomendamos que você atualize o ntp imediatamente.

wget url
        baixará o arquivo para você
dpkg -i arquivo.deb
        instalará o arquivo mencionado.

Debian GNU/Linux 2.2 codinome potato
- -------------------------------------

 Potato foi lançado para as arquiteturas alpha, arm, i386, m68k,
powerpc e sparc.

  Códigos-fonte:
   
http://security.debian.org/debian-security/dists/stable/updates/main/source/ntp_
4.0.99g-2potato1.diff.gz
      MD5 checksum: f278c5e4a9026241939509a88cab3ea3
   
http://security.debian.org/debian-security/dists/stable/updates/main/source/ntp_
4.0.99g-2potato1.dsc
      MD5 checksum: 3a9204ca9f9875e4b1a479a48152bf6e
   
http://security.debian.org/debian-security/dists/stable/updates/main/source/ntp_
4.0.99g.orig.tar.gz
      MD5 checksum: 6f3132fb4f6a3ee411554d09270f562a

  Arquivos que independem de arquitetura:
   
http://security.debian.org/debian-security/dists/stable/updates/main/binary-all/
ntp-doc_4.0.99g-2potato1_all.deb
      MD5 checksum: 01c31ea28c198cc81535aa448e89c7d1
   
http://security.debian.org/debian-security/dists/stable/updates/main/binary-all/
xntp3_4.0.99g-2potato1_all.deb
      MD5 checksum: 69290af3b3f49c3e7b9c3f0838cbd553

  Arquitetura Alpha:
   
http://security.debian.org/debian-security/dists/stable/updates/main/binary-alph
a/ntp_4.0.99g-2potato1_alpha.deb
      MD5 checksum: 1a5ad39a4bb5a5ccd597fe845bc54b77
   
http://security.debian.org/debian-security/dists/stable/updates/main/binary-alph
a/ntpdate_4.0.99g-2potato1_alpha.deb
      MD5 checksum: 3d203ddef513c34d252e690dcd25bfeb

  Arquitetura ARM:
   
http://security.debian.org/debian-security/dists/stable/updates/main/binary-arm/
ntp_4.0.99g-2potato1_arm.deb
      MD5 checksum: 6d1b3fb29c146cbcc99067ee078fac50
   
http://security.debian.org/debian-security/dists/stable/updates/main/binary-arm/
ntpdate_4.0.99g-2potato1_arm.deb
      MD5 checksum: ffdc0d76e2fffff4db7405d4537a7c8d

  Arquitetura Intel ia32:
   
http://security.debian.org/debian-security/dists/stable/updates/main/binary-i386
/ntp_4.0.99g-2potato1_i386.deb
      MD5 checksum: 827e2818b110c776aee4b5bd10c09b86
   
http://security.debian.org/debian-security/dists/stable/updates/main/binary-i386
/ntpdate_4.0.99g-2potato1_i386.deb
      MD5 checksum: bde1143db853fe4a8a9f59ff1eff9af4

  Arquitetura Motorola 680x0:
   
http://security.debian.org/debian-security/dists/stable/updates/main/binary-m68k
/ntp_4.0.99g-2potato1_m68k.deb
      MD5 checksum: 001533f2c4742752d45d6dd081b24f73
   
http://security.debian.org/debian-security/dists/stable/updates/main/binary-m68k
/ntpdate_4.0.99g-2potato1_m68k.deb
      MD5 checksum: 46339f3ff8988c5e1d0dd6f9bf7e4998

  Arquitetura PowerPC:
   
http://security.debian.org/debian-security/dists/stable/updates/main/binary-powe
rpc/ntp_4.0.99g-2potato1_powerpc.deb
      MD5 checksum: d61af62cc898ce021923bb77c465dde6
   
http://security.debian.org/debian-security/dists/stable/updates/main/binary-powe
rpc/ntpdate_4.0.99g-2potato1_powerpc.deb
      MD5 checksum: 2e0e0692631e5a863c7ff0b8ccb4cdd0

  Arquitetura Sun Sparc:
   
http://security.debian.org/debian-security/dists/stable/updates/main/binary-spar
c/ntp_4.0.99g-2potato1_sparc.deb
      MD5 checksum: aa724f09d203b64560949c4f26f92c22
   
http://security.debian.org/debian-security/dists/stable/updates/main/binary-spar
c/ntpdate_4.0.99g-2potato1_sparc.deb
      MD5 checksum: 9736c23f90abb86a6d7ad39f18e7bcc7

  Esses arquivos serão movidos para
  ftp://ftp.debian.org/debian/dists/stable/*/binary-$arch/ em breve.

Para arquiteturas que ainda não foram liberadas favor consultar o diretório
apropriado ftp://ftp.debian.org/debian/dists/sid/binary-$arch/ .

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Para o apt-get: deb http://security.debian.org/ stable/updates main
Para o dpkg-ftp: ftp://security.debian.org/debian-security
dists/stable/updates/main
Lista de discussão: debian-security-announce@lists.debian.org
Informação sobre o pacote: `apt-cache show <pkg>' and
http://packages.debian.org/<pkg>

-- 
Carlos Laviola - ICQ 55799523
pub  1024D/3516D372 2000-06-05 Carlos Laviola <claviola@ajato.com.br>
     Key fingerprint = 3BE1 6591 C78C 2AA4 31DD  AEEF 6406 0227 3516 D372
                            I have a solar vocal ail!

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