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Home » Hacking News » DSA 193-1-New klisa packages fix buffer overflow

DSA 193-1-New klisa packages fix buffer overflow

by Nikola Strahija on November 12th, 2002 iDEFENSE reports a security vulnerability in the klisa package, that provides a LAN information service similar to "Network Neighbourhood", which was discovered by Texonet. It is possible for a local attacker to exploit a buffer overflow condition in resLISa, a restricted version of KLISa. The vulnerability exists in the parsing of the LOGNAME environment variable, an overly long value will overwrite the instruction pointer thereby allowing an attacker to seize control of the executable.


This problem has been fixed in version 2.2.2-14.2 the current stable
distribution (woody) and in version 2.2.2-14.3 for the unstable
distribution (sid). The old stable distribution (potato) is not
affected since it doesn't contain a kdenetwork package

We recommend that you upgrade your klisa 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 3.0 alias woody
- --------------------------------

Source archives:

http://security.debian.org/pool/updates/main/k/kdenetwork/kdenetwork_2.2.2-14.2.dsc
Size/MD5 checksum: 902 30ea9de901850dd86078a4579a15a828
http://security.debian.org/pool/updates/main/k/kdenetwork/kdenetwork_2.2.2-14.2.diff.gz
Size/MD5 checksum: 27235 e78c14ecc95942e66a53a3d09e6282be
http://security.debian.org/pool/updates/main/k/kdenetwork/kdenetwork_2.2.2.orig.tar.gz
Size/MD5 checksum: 3319181 25fbfc5d2592937480c0d3796a2416e0

Alpha architecture:

http://security.debian.org/pool/updates/main/k/kdenetwork/klisa_2.2.2-14.2_alpha.deb
Size/MD5 checksum: 188864 b1693a71418d3175b7a60594a6462ed8

ARM architecture:

http://security.debian.org/pool/updates/main/k/kdenetwork/klisa_2.2.2-14.2_arm.deb
Size/MD5 checksum: 155726 333a771bfdbf7b4bc4bb7f16370d5092

Intel IA-32 architecture:

http://security.debian.org/pool/updates/main/k/kdenetwork/klisa_2.2.2-14.2_i386.deb
Size/MD5 checksum: 150248 447ca978df2eabe8971f0106d75dd5df

Intel IA-64 architecture:

http://security.debian.org/pool/updates/main/k/kdenetwork/klisa_2.2.2-14.2_ia64.deb
Size/MD5 checksum: 210980 b17bb3613cf9fc2aead59062f9a1451e

HP Precision architecture:

http://security.debian.org/pool/updates/main/k/kdenetwork/klisa_2.2.2-14.2_hppa.deb
Size/MD5 checksum: 217942 65650fd70d68aadd52ade4e9f2cdda12

Motorola 680x0 architecture:

http://security.debian.org/pool/updates/main/k/kdenetwork/klisa_2.2.2-14.2_m68k.deb
Size/MD5 checksum: 141476 1ae9ae0e344b160b1c1291fef6f053af

Big endian MIPS architecture:

http://security.debian.org/pool/updates/main/k/kdenetwork/klisa_2.2.2-14.2_mips.deb
Size/MD5 checksum: 143114 71aed55cd0d402bcd560b2f26b9a228b

Little endian MIPS architecture:

http://security.debian.org/pool/updates/main/k/kdenetwork/klisa_2.2.2-14.2_mipsel.deb
Size/MD5 checksum: 142900 a0396da967699113e88c6494fd3404e3

PowerPC architecture:

http://security.debian.org/pool/updates/main/k/kdenetwork/klisa_2.2.2-14.2_powerpc.deb
Size/MD5 checksum: 151782 fd2a725326925326882e98cc9116e91a

IBM S/390 architecture:

http://security.debian.org/pool/updates/main/k/kdenetwork/klisa_2.2.2-14.2_s390.deb
Size/MD5 checksum: 143358 f20e164fd56ac9d94c8298f07fb3d9a3

Sun Sparc architecture:

http://security.debian.org/pool/updates/main/k/kdenetwork/klisa_2.2.2-14.2_sparc.deb
Size/MD5 checksum: 151462 2fca224f1668dfa48e46261c047b5d80


Please note that the source packages mentioned above produce more
binary packages than the ones listed above. They are not relevant
for the fixed problems, though.

These files will probably be moved into the stable distribution on
its next revision.

- ---------------------------------------------------------------------------------
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: [email protected]
Package info: `apt-cache show ' and http://packages.debian.org/;

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