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Debian Security Advisory DSA 082-1                     security@debian.org

http://www.debian.org/security/                             Martin Schulze

October 18th, 2001

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Package        : xvt

Vulnerability  : Buffer Overflow

Problem-Type   : local root exploit

Debian-specific: no



Christophe Bailleux reported on bugtraq that Xvt is vulnerable to a

buffer overflow in its argument handling.  Since Xvt is installed

setuid root, it was possible for a normal user to pass

carefully-crafted arguments to xvt so that xvt executed a root shell.



This problem has been fixed by the maintainer in version 2.1-13 of xvt

for Debian unstable and 2.1-13.0potato.1 for the stable Debian

GNU/Linux 2.2.



We recommend that you upgrade your xvt package 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 2.2 alias potato

------------------------------------



  Source archives:



    xvt_2.1-13.0potato.1.diff.gz
      MD5 checksum: af96d56c54e9cc37c33ad94fce9a046e

    xvt_2.1-13.0potato.1.dsc
      MD5 checksum: 7d764dc9635c0c0fe71528dbde31ad7e

    xvt_2.1.orig.tar.gz
      MD5 checksum: 5727ba381c87361431da3a97ab6034c0



  Alpha architecture:



    xvt_2.1-13.0potato.1_alpha.deb
      MD5 checksum: 2c8b053d550288ccae711af15f7c7fa1



  ARM architecture:



    xvt_2.1-13.0potato.1_arm.deb
      MD5 checksum: 2c48de17edf03a25f81bdf4fbf680788



  Intel ia32 architecture:



    xvt_2.1-13.0potato.1_i386.deb
      MD5 checksum: 3fe8465dac109969c871f264d847d467



  Motorola 680x0 architecture:



    xvt_2.1-13.0potato.1_m68k.deb
      MD5 checksum: ce3fb43ff3245fff81c074e67766573b



  PowerPC architecture:



    xvt_2.1-13.0potato.1_powerpc.deb
      MD5 checksum: 51aee01c7f2b4cfa9f4a6b1fec1edfb7



  Sun Sparc architecture:



    xvt_2.1-13.0potato.1_sparc.deb
      MD5 checksum: 04c3f9ebcbe1cbfcbdce9fecef1b4d1e





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

  revision.



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For apt-get: deb http://security.debian.org/ stable/updates main

For dpkg-ftp: ftp://security.debian.org/debian-securitydists/stable/updates/main

Mailing list: debian-security-announce@lists.debian.org

Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>



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