Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2001.434 -- Debian Security Advisory DSA 081-1
New w3m packages fix buffer overflow
19 October 2001
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AusCERT Security Bulletin Summary
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Product: w3m
w3m-ssl
Vendor: Debian
Operating System: Debian GNU/Linux 2.2
Linux
Unix
Platform: Alpha
ARM
i386
PowerPC
Sparc
Impact: Execute Arbitrary Code/Commands
Access Required: Remote
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Debian Security Advisory DSA 081-1 security@debian.org
http://www.debian.org/security/ Martin Schulze
October 18th, 2001
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Packages : w3m, w3m-ssl
Vulnerability : Buffer Overflow
Problem-Type : remote code execution
Debian-specific: no
In SNS Advisory No. 32 a buffer overflow vulnerability has been
reported in the routine which parses MIME headers that are returned
from web servers. A malicious web server administrator could exploit
this and let the client web browser execute arbitrary code.
W3m handles MIME headers included in the request/response message of
HTTP communication like any other we bbrowser. A buffer overflow will
be occur when w3m receives a MIME encoded header with base64 format.
This problem has been fixed by the maintainer in version
0.1.10+0.1.11pre+kokb23-4 of w3m and w3m-ssl (for the SSL-enabled
version), both for Debian GNU/Linux 2.2.
We recommend that you upgrade your w3m 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 2.2 alias potato
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Source archives:
http://security.debian.org/dists/stable/updates/main/source/w3m_0.1.10+0.1.11pre+kokb23-4.diff.gz
MD5 checksum: 94e868f1fa21be50a56d40007a21acc6
http://security.debian.org/dists/stable/updates/main/source/w3m_0.1.10+0.1.11pre+kokb23.orig.tar.gz
MD5 checksum: 8f4503bbc966761d806d770fe1632450
http://security.debian.org/dists/stable/updates/main/source/w3m_0.1.10+0.1.11pre+kokb23-4.dsc
MD5 checksum: 46bd8e55a198036391b57a847486c303
http://security.debian.org/dists/stable/updates/main/source/w3m-ssl_0.1.10+0.1.11pre+kokb23-4.dsc
MD5 checksum: 6bc881ce595e5f723bcbd61dc6520523
http://security.debian.org/dists/stable/updates/main/source/w3m-ssl_0.1.10+0.1.11pre+kokb23-4.tar.gz
MD5 checksum: c857fd94c8e76f451ddfc3e59ce2d678
Alpha architecture:
http://security.debian.org/dists/stable/updates/main/binary-alpha/w3m_0.1.10+0.1.11pre+kokb23-4_alpha.deb
MD5 checksum: 2da17834f750361ef11f956aea86bcdc
http://security.debian.org/dists/stable/updates/main/binary-alpha/w3m-ssl_0.1.10+0.1.11pre+kokb23-4_alpha.deb
MD5 checksum: b5b17b0ab958e1ce5ae82998c8c52a21
ARM architecture:
http://security.debian.org/dists/stable/updates/main/binary-arm/w3m_0.1.10+0.1.11pre+kokb23-4_arm.deb
MD5 checksum: da67534b0182355a57618231addd92ae
http://security.debian.org/dists/stable/updates/main/binary-arm/w3m-ssl_0.1.10+0.1.11pre+kokb23-4_arm.deb
MD5 checksum: cd5a22df1fbca97ec3ce9d7a6760ab41
Intel ia32 architecture:
http://security.debian.org/dists/stable/updates/main/binary-i386/w3m_0.1.10+0.1.11pre+kokb23-4_i386.deb
MD5 checksum: 7b811019f0f246338cbf438952358b54
http://security.debian.org/dists/stable/updates/main/binary-i386/w3m-ssl_0.1.10+0.1.11pre+kokb23-4_i386.deb
MD5 checksum: 07c9aa2738a22e4984c290657c71b79d
PowerPC architecture:
http://security.debian.org/dists/stable/updates/main/binary-powerpc/w3m_0.1.10+0.1.11pre+kokb23-4_powerpc.deb
MD5 checksum: 64211980c4101e493aa2c0f906c6be9c
Sun Sparc architecture:
http://security.debian.org/dists/stable/updates/main/binary-sparc/w3m_0.1.10+0.1.11pre+kokb23-4_sparc.deb
MD5 checksum: 4016ba11b084cd94e6023b47e7270f74
http://security.debian.org/dists/stable/updates/main/binary-sparc/w3m-ssl_0.1.10+0.1.11pre+kokb23-4_sparc.deb
MD5 checksum: 4a50edab63b9fe3c6c40638902018ebb
w3m-ssl is not available for stable/powerpc and neither w3m nor
w3m-ssl are available for m68k.
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-security dists/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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