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AUSCERT External Security Bulletin Redistribution
ESB-2005.0149 -- Debian Security Advisory DSA 679-1
New toolchain-source package fixes insecure temporary files
15 February 2005
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AusCERT Security Bulletin Summary
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Product: toolchain-source
Publisher: Debian
Operating System: Debian GNU/Linux 3.0
Impact: Overwrite Arbitrary Files
Access: Existing Account
CVE Names: CAN-2005-0159
Original Bulletin: http://www.debian.org/security/2005/dsa-679
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Debian Security Advisory DSA 679-1 security@debian.org
http://www.debian.org/security/ Martin Schulze
February 14th, 2005 http://www.debian.org/security/faq
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Package : toolchain-source
Vulnerability : insecure temporary files
Problem-Type : local
Debian-specific: yes
CVE ID : CAN-2005-0159
Sean Finney discovered several insecure temporary file uses in
toolchain-source, the GNU binutils and GCC source code and scripts.
These bugs can lead a local attacker with minimal knowledge to trick
the admin into overwriting arbitrary files via a symlink attack. The
problems exist inside the Debian-specific tpkg-* scripts.
For the stable distribution (woody) these problems have been fixed in
version 3.0.4-1woody1.
For the unstable distribution (sid) these problems have been fixed in
version 3.4-5.
We recommend that you upgrade your toolchain-source package.
Upgrade Instructions
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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 3.0 alias woody
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Source archives:
http://security.debian.org/pool/updates/main/t/toolchain-source/toolchain-source_3.0.4-1woody1.dsc
Size/MD5 checksum: 532 a40a4bd817419cc8230a708920234140
http://security.debian.org/pool/updates/main/t/toolchain-source/toolchain-source_3.0.4-1woody1.tar.gz
Size/MD5 checksum: 25951549 f922410b108313705c4c32721403c93f
Architecture independent components:
http://security.debian.org/pool/updates/main/t/toolchain-source/toolchain-source_3.0.4-1woody1_all.deb
Size/MD5 checksum: 25962880 043b5163799735aa36cd163e86f26cfd
These files will probably be moved into the stable distribution on
its next update.
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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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