Debian: UPDATE: ntp denial of service
Posted by LinuxSecurity.com Team   
Debian Previous advisory introduced apotential denial of service attack.

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Debian Security Advisory DSA-045-2                       security@debian.org 
http://www.debian.org/security/                                Michael Stone
April 9, 2001
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Package: ntp
Vulnerability: remote root exploit
Debian-specific: no

Przemyslaw Frasunek <venglin@FREEBSD.LUBLIN.PL> reported that ntp
daemons such as that released with Debian GNU/Linux are vulnerable to a
buffer overflow that can lead to a remote root exploit. A previous
advisory (DSA-045-1) partially addressed this issue, but introduced a
potential denial of service attack. This has been corrected for Debian
2.2 (potato) in ntp version 4.0.99g-2potato2.

We recommend you upgrade your ntp package immediately.

wget url
        will fetch the file for you
dpkg -i file.deb
        will install the referenced file.

You may use an automated update by adding the resources from the
footer to the proper configuration.


Debian GNU/Linux 2.2 alias potato
------------------------------------

  Potato was released for the alpha, arm, i386, m68k, powerpc and sparc
  architectures.

  Source archives:
     http://security.debian.org/debian-security/dists/stable/updates/main/source/ntp_4.0.99g-2potato2.diff.gz
      MD5 checksum: 33eced8dfeecefed9ecd7a5425dce07f
     http://security.debian.org/debian-security/dists/stable/updates/main/source/ntp_4.0.99g-2potato2.dsc
      MD5 checksum: b704b4528c96b6b22ff2809cd551c221
     http://security.debian.org/debian-security/dists/stable/updates/main/source/ntp_4.0.99g.orig.tar.gz
      MD5 checksum: 6f3132fb4f6a3ee411554d09270f562a

  Architecture-independent files:
     http://security.debian.org/debian-security/dists/stable/updates/main/binary-all/ntp-doc_4.0.99g-2potato2_all.deb
      MD5 checksum: cfa7f1a427fb65dc85eca68f823c95d7
     http://security.debian.org/debian-security/dists/stable/updates/main/binary-all/xntp3_4.0.99g-2potato2_all.deb
      MD5 checksum: 3216aeca42720cd2b00f19ef05dc4ff8

  Alpha architecture:
     http://security.debian.org/debian-security/dists/stable/updates/main/binary-alpha/ntp_4.0.99g-2potato2_alpha.deb
      MD5 checksum: 09b2b4720a150be0421d3126de807b21
     http://security.debian.org/debian-security/dists/stable/updates/main/binary-alpha/ntpdate_4.0.99g-2potato2_alpha.deb
      MD5 checksum: 31d07aa810aa1b6b3a146e75ddb1fc6a

  ARM architecture:
     http://security.debian.org/debian-security/dists/stable/updates/main/binary-arm/ntp_4.0.99g-2potato2_arm.deb
      MD5 checksum: a099db2427b225e880da87c560bfb5b3
     http://security.debian.org/debian-security/dists/stable/updates/main/binary-arm/ntpdate_4.0.99g-2potato2_arm.deb
      MD5 checksum: fb8f5f35fc3b9f3db0d17c7fb302c6dd

  Intel ia32 architecture:
     http://security.debian.org/debian-security/dists/stable/updates/main/binary-i386/ntp_4.0.99g-2potato2_i386.deb
      MD5 checksum: 2a01903f179ccc41a87a8c9495f06747
     http://security.debian.org/debian-security/dists/stable/updates/main/binary-i386/ntpdate_4.0.99g-2potato2_i386.deb
      MD5 checksum: 915a79c8724151e0adf430ca57ad9844

  Motorola 680x0 architecture:
     http://security.debian.org/debian-security/dists/stable/updates/main/binary-m68k/ntp_4.0.99g-2potato2_m68k.deb
      MD5 checksum: dc3826e35dafd4163062f149a63f2bbe
     http://security.debian.org/debian-security/dists/stable/updates/main/binary-m68k/ntpdate_4.0.99g-2potato2_m68k.deb
      MD5 checksum: 6666baa200509e76e0c32dd0166bcb79

  PowerPC architecture:
     http://security.debian.org/debian-security/dists/stable/updates/main/binary-powerpc/ntp_4.0.99g-2potato2_powerpc.deb
      MD5 checksum: 8387ad0831907e26566b2d329425d0e1
     http://security.debian.org/debian-security/dists/stable/updates/main/binary-powerpc/ntpdate_4.0.99g-2potato2_powerpc.deb
      MD5 checksum: 5d90bf20314abc66efe7fea2ecb521d7

  Sun Sparc architecture:
     http://security.debian.org/debian-security/dists/stable/updates/main/binary-sparc/ntp_4.0.99g-2potato2_sparc.deb
      MD5 checksum: b014f4a20d4a0c2ec5e788fafc7dd3cd
     http://security.debian.org/debian-security/dists/stable/updates/main/binary-sparc/ntpdate_4.0.99g-2potato2_sparc.deb
      MD5 checksum: abe31f82a9b202b8880b51b97327cc3b

  These files will be moved into
   ftp://ftp.debian.org/debian/dists/stable/*/binary-$arch/ soon.

For not yet released architectures please refer to the appropriate
directory  ftp://ftp.debian.org/debian/dists/sid/binary-$arch/ .

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For apt-get: deb  http://security.debian.org/ stable/updates main
For dpkg-ftp:  ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show ' and  http://packages.debian.org/