Debian: 'rxvt' buffer overflow vulnerability

    Date18 Jun 2001
    CategoryDebian
    2370
    Posted ByLinuxSecurity Advisories
    Since rxvt is installed sgid utmp an attacker could use thisto gain utmp which would allow him to modify the utmp file.
    
    ------------------------------------------------------------------------
    Debian Security Advisory DSA-062-1                   This email address is being protected from spambots. You need JavaScript enabled to view it. 
    http://www.debian.org/security/                         Wichert Akkerman
    June 16, 2001
    ------------------------------------------------------------------------
    
    
    Package        : rxvt
    Problem type   : buffer overflow
    Debian-specific: no
    
    Samuel Dralet reported on bugtraq that version 2.6.2 of rxvt (a
    VT102 terminal emulator for X) have a buffer overflow in the
    tt_printf() function. A local user could abuse this making rxvt
    print a special string using that function, for example by using
    the -T or -name command-line options. That string would cause a
    stack overflow and contain code which rxvt will execute.
    
    Since rxvt is installed sgid utmp an attacker could use this
    to gain utmp which would allow him to modify the utmp file.
    
    This has been fixed in version 2.6.2-2.1, and we recommend that
    you upgrade your rxvt package.
    
    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/rxvt_2.6.2-2.1.diff.gz
          MD5 checksum: 2f0bc5f6be93de9058b70aa798e3107b
         http://security.debian.org/dists/stable/updates/main/source/rxvt_2.6.2-2.1.dsc
          MD5 checksum: cb15b91b306310b3a14b2530bedb45ce
         http://security.debian.org/dists/stable/updates/main/source/rxvt_2.6.2.orig.tar.gz
          MD5 checksum: f1866fd8d7c6b92d0f5b11ccbe348f73
    
      Alpha architecture:
         http://security.debian.org/dists/stable/updates/main/binary-alpha/rxvt-ml_2.6.2-2.1_alpha.deb
          MD5 checksum: ea3b35ff253c79b3a83ecfe837fe0189
         http://security.debian.org/dists/stable/updates/main/binary-alpha/rxvt_2.6.2-2.1_alpha.deb
          MD5 checksum: 4d4bce3b3632b2391ce282c67034d558
    
      ARM architecture:
         http://security.debian.org/dists/stable/updates/main/binary-arm/rxvt-ml_2.6.2-2.1_arm.deb
          MD5 checksum: 94e13605d75cf071ef22e320c2a841d6
         http://security.debian.org/dists/stable/updates/main/binary-arm/rxvt_2.6.2-2.1_arm.deb
          MD5 checksum: 3f45cc0c414874c9065b2c21e174ef3c
    
      Intel IA-32 architecture:
         http://security.debian.org/dists/stable/updates/main/binary-i386/rxvt-ml_2.6.2-2.1_i386.deb
          MD5 checksum: 1d6ad4bcaca88243f83a9cfa0b5d6753
         http://security.debian.org/dists/stable/updates/main/binary-i386/rxvt_2.6.2-2.1_i386.deb
          MD5 checksum: 30c7114e67c17a47c4ac8abf15ded74e
    
      Motorola 680x0 architecture:
         http://security.debian.org/dists/stable/updates/main/binary-m68k/rxvt-ml_2.6.2-2.1_m68k.deb
          MD5 checksum: 9fd344e418b551535facc6ae7a9484ba
         http://security.debian.org/dists/stable/updates/main/binary-m68k/rxvt_2.6.2-2.1_m68k.deb
          MD5 checksum: bded59c5b4061dab92c907a9df2db259
    
      PowerPC architecture:
         http://security.debian.org/dists/stable/updates/main/binary-powerpc/rxvt-ml_2.6.2-2.1_powerpc.deb
          MD5 checksum: c5f20b67ceb084d1e1226f52a1a8cda1
         http://security.debian.org/dists/stable/updates/main/binary-powerpc/rxvt_2.6.2-2.1_powerpc.deb
          MD5 checksum: 48566b5a60f937bfd0b1a54ac09dd081
    
      Sun Sparc architecture:
         http://security.debian.org/dists/stable/updates/main/binary-sparc/rxvt-ml_2.6.2-2.1_sparc.deb
          MD5 checksum: 29074cfb3a849199500192eca0fc650b
         http://security.debian.org/dists/stable/updates/main/binary-sparc/rxvt_2.6.2-2.1_sparc.deb
          MD5 checksum: d501d5de8283d33a1915c0b52dd33c28
    
      These packages will be moved into the stable distribution on its next
      revision.
    
    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
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