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ESB-2001.524 -- Debian Security Advisory DSA-090-1 -- xtel symlink vulnerabilities |
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Date: 06 December 2001 Original URL: http://www.auscert.org.au/render.html?cid=1&it=1634 Click here for PGP verifiable version -----BEGIN PGP SIGNED MESSAGE-----
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2001.524 -- Debian Security Advisory DSA-090-1
xtel symlink vulnerabilities
6 December 2001
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AusCERT Security Bulletin Summary
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Product: xtel
Vendor: Debian
Operating System: Debian GNU/Linux 2.2
Platform: Alpha
ARM
i386
Motorola 680x0
PowerPC
SPARC
Impact: Root Compromise
Create Arbitrary Files
Modify Arbitrary Files
Access Required: Existing Account
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Debian Security Advisory DSA-090-1 security@debian.org
http://www.debian.org/security/ Wichert Akkerman
December 5, 2001
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Package : xtel
Problem type : symlink attack
Debian-specific: no
The xtel (a X emulator for minitel) package as distributed with Debian
GNU/Linux 2.2 has two possible symlink attacks:
* xteld creates a temporary file /tmp/.xtel-<user> without checking
for symlinks.
* when printing a hardcope xtel would create a temporary file without
protecting itself against symlink attacks.
Both problems have been fixed in version 3.2.1-4.potato.1 .
wget url
will fetch the file for you
dpkg -i file.deb
will install the referenced file.
Debian GNU/Linux 2.2 alias potato
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Potato was released for alpha, arm, i386, m68k, powerpc and sparc.
Source archives:
http://security.debian.org/dists/stable/updates/main/source/xtel_3.2.1-4.potato.1.diff.gz
MD5 checksum: 79575d2797c4b85fafba690f71ba97c4
http://security.debian.org/dists/stable/updates/main/source/xtel_3.2.1-4.potato.1.dsc
MD5 checksum: 036a3763efa51ff74baa14705b86974a
http://security.debian.org/dists/stable/updates/main/source/xtel_3.2.1.orig.tar.gz
MD5 checksum: 9cec4556d70194beb25086d8e14b9b20
Alpha architecture:
http://security.debian.org/dists/stable/updates/main/binary-alpha/xtel_3.2.1-4.potato.1_alpha.deb
MD5 checksum: c288520adc2a519edb341c18d6b20572
ARM architecture:
http://security.debian.org/dists/stable/updates/main/binary-arm/xtel_3.2.1-4.potato.1_arm.deb
MD5 checksum: 0114570b5bd6973f329e8477e7c25078
Motorola 680x0 architecture:
http://security.debian.org/dists/stable/updates/main/binary-m68k/xtel_3.2.1-4.potato.1_m68k.deb
MD5 checksum: 46a9883023a1c897ee585b009d72ea92
Intel IA-32 architecture:
http://security.debian.org/dists/stable/updates/main/binary-i386/xtel_3.2.1-4.potato.1_i386.deb
MD5 checksum: 325874239da03f93d0ff9039336d1231
PowerPC architecture:
http://security.debian.org/dists/stable/updates/main/binary-powerpc/xtel_3.2.1-4.potato.1_powerpc.deb
MD5 checksum: 0299e89118646ef52579c1de1f56bcdd
Sun Sparc architecture:
http://security.debian.org/dists/stable/updates/main/binary-sparc/xtel_3.2.1-4.potato.1_sparc.deb
MD5 checksum: 55f0f97fa3dbb4454f2933862333a84c
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/ .
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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
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