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Home » Hacking News » [CLA-2002:550] Conectiva Linux Security Announcement - samba

[CLA-2002:550] Conectiva Linux Security Announcement - samba

by Nikola Strahija on November 24th, 2002 Samba is a server that provides SMB services such as file and printer sharing for other SMB clients, such as Windows(R).

Steve Langasek and Eloy Paris discovered a vulnerability in Samba
versions 2.2.2 to 2.2.6 which may allow a remote attacker to execute
arbitrary code in the server context. The vulnerability, which is a
buffer overflow in a function used to decrypt hashed passwords, can
be exploited by an attacker when authenticating a valid account in
the samba server. In order to sucessfully run arbitrary code, the
overflow must be crafted such that converting a DOS codepage string
to little endian UCS2 unicode translates into an executable block of

This update also adds other fixes for potential buffer overflows from
samba 2.2.7 that are not part of the standard patch supplied by the
samba authors in their announcement[1]. The samba package distributed
in Conectiva Linux 6.0 (samba-2.0.9) is not vulnerable to the
announced buffer overflow, but it is being upgraded with these
aditional fixes.

All samba users should upgrade their packages immediately. This
update will automatically restart the samba service if it is already



Users of Conectiva Linux version 6.0 or higher may use apt to perform
upgrades of RPM packages:
- add the following line to /etc/apt/sources.list if it is not there yet
(you may also use linuxconf to do this):

rpm [cncbr] 6.0/conectiva updates

(replace 6.0 with the correct version number if you are not running CL6.0)

- run: apt-get update
- after that, execute: apt-get upgrade

Detailed instructions reagarding the use of apt and upgrade examples
can be found at

- -------------------------------------------------------------------------
All packages are signed with Conectiva's GPG key. The key and instructions
on how to import it can be found at
Instructions on how to check the signatures of the RPM packages can be
found at
- -------------------------------------------------------------------------
All our advisories and generic update instructions can be viewed at

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Version: GnuPG v1.0.6 (GNU/Linux)
Comment: For info see

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