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Debian: Dietlibc integer overflow Print E-mail
User Rating:      How can I rate this item?
Posted by LinuxSecurity.com Team   
Debian An integer overflow bug has been discovered in the RPC library used bydietlibc, which could be exploited to gain unauthorized root access to software linking to this code.

- --------------------------------------------------------------------------
Debian Security Advisory DSA 146-1                     security@debian.org 
http://www.debian.org/security/                             Martin Schulze
August 8th, 2002   
- --------------------------------------------------------------------------

Package        : dietlibc
Vulnerability  : integer overflow
Problem-Type   : remote
Debian-specific: no
CVE Id         : CAN-2002-0391
CERT advisory  : VU#192995

An integer overflow bug has been discovered in the RPC library used by
dietlibc, a libc optimized for small size, which is derived from the
SunRPC library.  This bug could be exploited to gain unauthorized root
access to software linking to this code.  The packages below also fix
integer overflows in the calloc, fread and fwrite code.  They are also
more strict regarding hostile DNS packets that could lead to a
vulnerability otherwise.

These problems have been fixed in version 0.12-2.2 for the current
stable distribution (woody) and in version 0.20-0cvs20020806 for the
unstable distribution (sid).  Debian 2.2 (potato) is not affected
since it doesn't contain dietlibc packages.

We recommend that you upgrade your dietlibc packages immediately.

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

If you are using the apt-get package manager, use the line for
sources.list as given below:

apt-get update
        will update the internal database
apt-get upgrade
        will install corrected packages

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


Debian GNU/Linux 3.0 alias woody
- --------------------------------

The dietlibc packages are only available for the following
architectures: alpha arm i386 mips mipsel powerpc sparc


  Source archives:

     http://security.debian.org/pool/updates/main/d/dietlibc/dietlibc_0.12-2.2.dsc
      Size/MD5 checksum:      581 15d5d5021f626d40b662b37bf56892e8
     http://security.debian.org/pool/updates/main/d/dietlibc/dietlibc_0.12-2.2.diff.gz
      Size/MD5 checksum:     7815 572e4c0686879b6d042ca79d3aa9acd3
     http://security.debian.org/pool/updates/main/d/dietlibc/dietlibc_0.12.orig.tar.gz
      Size/MD5 checksum:   415823 1b9019cc4e717470603d2716a602ec51

  Architecture independent components:

     http://security.debian.org/pool/updates/main/d/dietlibc/dietlibc-doc_0.12-2.2_all.deb
      Size/MD5 checksum:    18852 5348058e8565523e724fa8a64b5f568c

  Alpha architecture:

     http://security.debian.org/pool/updates/main/d/dietlibc/dietlibc-dev_0.12-2.2_alpha.deb
      Size/MD5 checksum:   264130 7a4bc7087bd34bda37c4e4709e0b52e9

  ARM architecture:

     http://security.debian.org/pool/updates/main/d/dietlibc/dietlibc-dev_0.12-2.2_arm.deb
      Size/MD5 checksum:   239022 99d6743d6d009433fa0754867ae67aa4

  Intel IA-32 architecture:

     http://security.debian.org/pool/updates/main/d/dietlibc/dietlibc-dev_0.12-2.2_i386.deb
      Size/MD5 checksum:   230532 f671532aae3e1d70726ebd9109e7a1a4

  Big endian MIPS architecture:

     http://security.debian.org/pool/updates/main/d/dietlibc/dietlibc-dev_0.12-2.2_mips.deb
      Size/MD5 checksum:   252756 3cad479c099819721d25f78f3ab6038e

  Little endian MIPS architecture:

     http://security.debian.org/pool/updates/main/d/dietlibc/dietlibc-dev_0.12-2.2_mipsel.deb
      Size/MD5 checksum:   251582 75ff00f46d2d83d22cec2a0fdefaa390

  PowerPC architecture:

     http://security.debian.org/pool/updates/main/d/dietlibc/dietlibc-dev_0.12-2.2_powerpc.deb
      Size/MD5 checksum:   245870 7b18af0fc30e37bc7a4d2b4bdd2aead5

  Sun Sparc architecture:

     http://security.debian.org/pool/updates/main/d/dietlibc/dietlibc-dev_0.12-2.2_sparc.deb
      Size/MD5 checksum:   238992 bc69f78304de16347a4f0d1c7de3728c


  These files will probably be moved into the stable distribution on
  its next revision.

- ---------------------------------------------------------------------------------
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/



 
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