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Debian Security Advisory: dialog symlink attack

Dec 25, 2000, 03:00 (0 Talkback[s])

Date: Mon, 25 Dec 2000 02:13:51 +0100
From: Wichert Akkerman wichert@cistron.nl
To: debian-security-announce@lists.debian.org
Subject: [SECURITY] [DSA-008-1] dialog symlink attack


Debian Security Advisory DSA-008-1                                      security@debian.org
http://www.debian.org/security/                                   Wichert Akkerman 
December 25, 2000

Package : dialog Problem type : insecure temporary files Debian-specific: no

Matt Kraai reported that he found a problem in the way dialog creates lock-files: it did not create them safely which made it susceptible to a symlink attack.

This has been fixed in version 0.9a-20000118-3bis.

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/dialog_0.9a-20000118-3bis.diff.gz MD5 checksum: 78b6e69859bc18f738982d4f1bd390c7
http://security.debian.org/dists/stable/updates/main/source/dialog_0.9a-20000118-3bis.dsc MD5 checksum: 9bd63778ae6f295d9c06d22ac5910b92
http://security.debian.org/dists/stable/updates/main/source/dialog_0.9a-20000118.orig.tar.gz MD5 checksum: ffa7381631cb24aa5d61dab7f2f1245b

Alpha architecture:
http://security.debian.org/dists/stable/updates/main/binary-alpha/dialog_0.9a-20000118-3bis_alpha.deb MD5 checksum: 57c04e1f8dec33de5dffee92d0b162cb

ARM architecture:
http://security.debian.org/dists/stable/updates/main/binary-arm/dialog_0.9a-20000118-3bis_arm.deb MD5 checksum: 5735033a17262209a1130459229a0982

Intel ia32 architecture:
http://security.debian.org/dists/stable/updates/main/binary-i386/dialog_0.9a-20000118-3bis_i386.deb MD5 checksum: f38bbfaa0076a590fe2421eb2ab68a9f

Motorola 680x0 architecture:
http://security.debian.org/dists/stable/updates/main/binary-m68k/dialog_0.9a-20000118-3bis_m68k.deb MD5 checksum: e7d0985d05a750c6550dd778ab14863e

PowerPC architecture:
http://security.debian.org/dists/stable/updates/main/binary-powerpc/dialog_0.9a-20000118-3bis_powerpc.deb MD5 checksum: 13033d33c56d4e18e8442cc2debaa6f8

Sun Sparc architecture:
http://security.debian.org/dists/stable/updates/main/binary-sparc/dialog_0.9a-20000118-3bis_sparc.deb MD5 checksum: c310130da0b7ba8ad8d52003db9669c3

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