[CLA-2005:940] Conectiva Security Announcement - curl

[Conectiva Updates]

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CONECTIVA LINUX SECURITY ANNOUNCEMENT
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PACKAGE : curl
SUMMARY : Fix for cURL vulnerability
DATE : 2005-03-21 10:32:00
ID : CLA-2005:940
RELEVANT
RELEASES : 10

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DESCRIPTION
cURL[1] is a client to get/put files from/to servers, using any of
the supported protocols.

This announcement fixes a remote buffer overflow vulnerability[2] in
cURL that could allow a malicious servers to execute arbitrary code
via base64 encoded replies that exceed the intended buffer lengths
when decoded, which is not properly handled by the Curl_input_ntlm
function in http_ntlm.c during NTLM authentication or the
Curl_krb_kauth and krb4_auth functions in krb4.c during Kerberos
authentication.


SOLUTION
It is recommended that all cURL users upgrade their packages.

IMPORTANT: In order to properly close the vulnerability, all
applications liked against libcurl should also be restart.


REFERENCES
1.http://curl.haxx.se/
2.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0490


UPDATED PACKAGES
ftp://atualizacoes.conectiva.com.br/10/SRPMS.curl/curl-7.11.1-53435U10_1cl.src.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS.curl/curl-7.11.1-53435U10_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS.curl/libcurl-devel-7.11.1-53435U10_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS.curl/libcurl-devel-static-7.11.1-53435U10_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS.curl/libcurl2-7.11.1-53435U10_1cl.i386.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

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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

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All our advisories and generic update instructions can be viewed at
http://distro.conectiva.com.br/atualizacoes/?idioma=en

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Copyright (c) 2004 Conectiva Inc.
http://www.conectiva.com

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