Linux Security
Linux Security
Linux Security

Debian: 'netscape' vulnerability

Date 24 Apr 2001
Posted By LinuxSecurity Advisories
Florian Wesch has discovered a problem (reported to bugtraq) with the way how Netscape handles comments in GIF files.

Debian Security Advisory DSA 051-1                       This email address is being protected from spambots. You need JavaScript enabled to view it.                               Martin Schulze
April 23, 2001

Package        : netscape
Vulnerability  : unexpected javascript execution
Problem-Type   : remote information gathering
Debian-specific: no

Florian Wesch has discovered a problem (reported to bugtraq) with the
way how Netscape handles comments in GIF files.  The Netscape browser
does not escape the GIF file comment in the image information page.
This allows javascript execution in the "about:" protocol and can for
example be used to upload the History (about:global) to a webserver,
thus leaking private information.  This problem has been fixed
upstream in Netscape 4.77.  Since we haven't received sourcecode for
these packages they are not part of the Debian GNU/Linux distribution
but are packaged up as `.deb' files for a convenient installation.

We recommend that you upgrade your Netscape packages immediately and
remove older versions.

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 install netscape
        will install the new netscape 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

  Potato was released for the alpha, arm, i386, m68k, powerpc and
  sparc architectures.  Netscape, however, is only available for the
  intel ia32 architecture.

  Source archives:
      MD5 checksum: 443f1d654d499f8e62cede1c1b941dd6
      MD5 checksum: f6b6b49a3a65885cb75957aba91ed93b
      MD5 checksum: f2a101417000e86ae18d2141a923e2dc
      MD5 checksum: 21b128f3619a98e5a7f7e57320bc5964

  Architecture independent:
      MD5 checksum: cff3dc5d24df436632e0c1dc92ceff2c
      MD5 checksum: bddae3d1510b7f68de8e8f75c7682d05
      MD5 checksum: 389dd4d9ecbb70c3ea1e733cf0951a20
      MD5 checksum: 80934ce5eb228e4177d4ffd6c528bded
      MD5 checksum: 98283871e97a81f77685b512534190d9
      MD5 checksum: 5f4f17e5d21c223bfeee1e9a39fbc6ea
      MD5 checksum: 1f09a094490933e871188db7dd9de254

  Intel ia32 architecture:
      MD5 checksum: 446efd08a5a016ba168577a73e0f5dd7
      MD5 checksum: 10ce35972a99467b5ddb6222c3144f03
      MD5 checksum: af7235095bbf22fedc8d7a3c792498e4
      MD5 checksum: c88a2ee263fd1544dec7e54418bf5a8c
      MD5 checksum: 40d3290ba54f62bd093e684e94655c40
      MD5 checksum: 0baf86bf2e8e91d36c10dbae7ca989b6
      MD5 checksum: 77543de59ed335d3d6be6f5e317d5936
      MD5 checksum: 0baf86bf2e8e91d36c10dbae7ca989b6
      MD5 checksum: 129f397e5ac2e9c912ca0628f067ea83
      MD5 checksum: 76be767df47355cd44f980074b7ad6d1
      MD5 checksum: 2d0ea8d65435883e7ac68642bc7e6742
      MD5 checksum: 46909f1d6f010e578fc2adddcfa60fa7

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

For not yet released architectures please refer to the appropriate
directory$arch/ .

For apt-get: deb stable/updates main
For dpkg-ftp: dists/stable/updates/main
Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
Package info: `apt-cache show ' and

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