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AUSCERT External Security Bulletin Redistribution
ESB-2001.435 -- Debian Security Advisory DSA 082-1
News Xvt packages fix buffer overflow
19 October 2001
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AusCERT Security Bulletin Summary
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Product: xvt
Vendor: Debian
Operating System: Debian GNU/Linux 2.2
Linux
Unix
Platform: Alpha
ARM
i386
Motorola 680x0
PowerPC
Sparc
Impact: Root Compromise
Access Required: Existing Account
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Debian Security Advisory DSA 082-1 security@debian.org
http://www.debian.org/security/ Martin Schulze
October 18th, 2001
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Package : xvt
Vulnerability : Buffer Overflow
Problem-Type : local root exploit
Debian-specific: no
Christophe Bailleux reported on bugtraq that Xvt is vulnerable to a
buffer overflow in its argument handling. Since Xvt is installed
setuid root, it was possible for a normal user to pass
carefully-crafted arguments to xvt so that xvt executed a root shell.
This problem has been fixed by the maintainer in version 2.1-13 of xvt
for Debian unstable and 2.1-13.0potato.1 for the stable Debian
GNU/Linux 2.2.
We recommend that you upgrade your xvt package 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/xvt_2.1-13.0potato.1.diff.gz
MD5 checksum: af96d56c54e9cc37c33ad94fce9a046e
http://security.debian.org/dists/stable/updates/main/source/xvt_2.1-13.0potato.1.dsc
MD5 checksum: 7d764dc9635c0c0fe71528dbde31ad7e
http://security.debian.org/dists/stable/updates/main/source/xvt_2.1.orig.tar.gz
MD5 checksum: 5727ba381c87361431da3a97ab6034c0
Alpha architecture:
http://security.debian.org/dists/stable/updates/main/binary-alpha/xvt_2.1-13.0potato.1_alpha.deb
MD5 checksum: 2c8b053d550288ccae711af15f7c7fa1
ARM architecture:
http://security.debian.org/dists/stable/updates/main/binary-arm/xvt_2.1-13.0potato.1_arm.deb
MD5 checksum: 2c48de17edf03a25f81bdf4fbf680788
Intel ia32 architecture:
http://security.debian.org/dists/stable/updates/main/binary-i386/xvt_2.1-13.0potato.1_i386.deb
MD5 checksum: 3fe8465dac109969c871f264d847d467
Motorola 680x0 architecture:
http://security.debian.org/dists/stable/updates/main/binary-m68k/xvt_2.1-13.0potato.1_m68k.deb
MD5 checksum: ce3fb43ff3245fff81c074e67766573b
PowerPC architecture:
http://security.debian.org/dists/stable/updates/main/binary-powerpc/xvt_2.1-13.0potato.1_powerpc.deb
MD5 checksum: 51aee01c7f2b4cfa9f4a6b1fec1edfb7
Sun Sparc architecture:
http://security.debian.org/dists/stable/updates/main/binary-sparc/xvt_2.1-13.0potato.1_sparc.deb
MD5 checksum: 04c3f9ebcbe1cbfcbdce9fecef1b4d1e
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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