Debian: 'joe' symlink vulnerability
Posted by LinuxSecurity.com Team   
Debian When joe dies to a signal instead of a normal exit it is vulnerable to a symlink attack.

- ------------------------------------------------------------------------
Debian Security Advisory                             security@debian.org 
http://www.debian.org/security/                         Wichert Akkerman
November 22, 2000
- ------------------------------------------------------------------------


Package        : joe
Problem type   : symlink attack
Debian-specific: no

When joe (Joe's Own Editor) dies due to a signal instead of a normal
exit it saves a list of the files it is editing to a file called `DEADJOE'
in its current directory. Unfortunately this wasn't done safely which made
joe vulnerable to a symlink attack.

This has been fixed in version 2.8-15.1 .

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


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

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

  Source archives:
    
http://security.debian.org/dists/stable/updates/main/source/joe_2.8-15.1.diff.gz
      MD5 checksum: 94131d7638b028e6bd6f529747b9d318
    
http://security.debian.org/dists/stable/updates/main/source/joe_2.8-15.1.dsc
      MD5 checksum: 5ad45a1fa1a293bef03786f9258bf846
    
http://security.debian.org/dists/stable/updates/main/source/joe_2.8.orig.tar.gz
      MD5 checksum: 84c1aebfce7876b8639945da3c29f204

  Alpha architecture:
    
http://security.debian.org/dists/stable/updates/main/binary-alpha/joe_2.8-15.1_alpha.deb
      MD5 checksum: defbc5c39a2ae8ed000b7b302ecd339f

  ARM architecture:
    
http://security.debian.org/dists/stable/updates/main/binary-arm/joe_2.8-15.1_arm.deb
      MD5 checksum: bcb70726840c2cf11cba068ce2a826be

  Intel ia32 architecture:
    
http://security.debian.org/dists/stable/updates/main/binary-i386/joe_2.8-15.1_i386.deb
      MD5 checksum: 21444255b240be01132208e5cb1d3439

  Motorola 680x0 architecture:
    
http://security.debian.org/dists/stable/updates/main/binary-m68k/joe_2.8-15.1_m68k.deb
      MD5 checksum: a4b275c324956489bf7558d42a80f22f

  PowerPC architecture:
    
http://security.debian.org/dists/stable/updates/main/binary-powerpc/joe_2.8-15.1_powerpc.deb
      MD5 checksum: 689d54abe039ded6e82bf60115737631

  Sun Sparc architecture:
    
http://security.debian.org/dists/stable/updates/main/binary-sparc/joe_2.8-15.1_sparc.deb
      MD5 checksum: 8846236e9158cf3f3d7f1b8edce73d40

  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/ .

- -- 
- ----------------------------------------------------------------------------
apt-get: deb  http://security.debian.org/ stable/updates main
dpkg-ftp:  ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org