CONECTIVA LINUX SECURITY ANNOUNCEMENT
PACKAGE : lha
SUMMARY : Buffer overflow and directory traversal
vulnerabilities
DATE : 2004-05-06 18:20:00
ID : CLA-2004:840
RELEVANT RELEASES : 8, 9
DESCRIPTION
Lha is an archiving and compression utility for LHarc format
archives.
Ulf Harnhammar discovered a buffer overflow[1] and a directory
traversal [2]vulnerability in the lha utility. Both vulnerabilities
can be exploited by an attacker with the use of specially crafted
LHarc archives. When processed by lha, these files may cause it to
execute arbitrary code (exploiting the buffer overflow
vulnerability) or overwrite arbitrary files if the user unpacking
the malicious archive has sufficient filesystem permissions to do
so (exploiting the directory traversal vulnerability).
This update fixes both issues.
SOLUTION
All users of the lha utility should upgrade.
REFERENCES:
1.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0234
2.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0235
UPDATED PACKAGES
ftp://atualizacoes.conectiva.com.br/8/RPMS/lha-1.14i-2U80_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/SRPMS/lha-1.14i-2U80_1cl.src.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/lha-1.14i-8382U90_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/SRPMS/lha-1.14i-8382U90_1cl.src.rpm
ADDITIONAL INSTRUCTIONS
The apt tool can be used to perform RPM packages upgrades:
- run: apt-get update
- after that, execute: apt-get upgrade
Detailed instructions regarding the use of apt and upgrade
examples can be found at http://distro.conectiva.com.br/atualizacoes/#apt?idioma=en
All packages are signed with Conectiva’s GPG key. The key and
instructions on how to import it can be found at
http://distro.conectiva.com.br/seguranca/chave/?idioma=en
Instructions on how to check the signatures of the RPM packages can
be found at http://distro.conectiva.com.br/seguranca/politica/?idioma=en
All our advisories and generic update instructions can be viewed at
http://distro.conectiva.com.br/atualizacoes/?idioma=en
Copyright (c) 2004 Conectiva Inc.
http://www.conectiva.com