Conectiva Linux Security Announcement – stunnel

Date: Wed, 20 Dec 2000 12:25:50 -0200
From: secure@CONECTIVA.COM.BR
To: BUGTRAQ@SECURITYFOCUS.COM
Subject: [CLA-2000:363] Conectiva Linux Security Announcement –
stunnel

---

CONECTIVA LINUX SECURITY ANNOUNCEMENT

---

PACKAGE   : stunnel
SUMMARY   : Remote exploit and other bug fixes
DATE      : 2000-12-20 12:18:00
ID        : CLA-2000:363
RELEVANT
RELEASES  : 4.0, 4.0es, 4.1, 4.2, 5.0, 5.1, 6.0

---

DESCRIPTION “stunnel” is a package which offers wrapped SSL
connections for generic TCP services, such as pop3, ldap and
others. Versions prior to 3.9 have a format string vulnerability in
a syslog() call which could be exploited remotely. The package
distributed with Conectiva Linux 5.1 and 6.0 has the daemon running
as the “stunnel” user, and not root, which diminishes the effect of
this vulnerability somewhat. Also, versions prior to 3.8 created
the PID file in an insecure manner, possibly making it vulnerable
to symlink attacks depending on where the user chose to put the PID
file. Other bugs were also fixed in the 3.10 release, please refer
to the Changelog for a full description.

SOLUTION
All stunnel users should upgrade immediatelly.

DIRECT DOWNLOAD LINKS TO THE UPDATED PACKAGES

ftp://atualizacoes.conectiva.com.br/4.0/SRPMS/stunnel-3.10-1cl.src.rpm

ftp://atualizacoes.conectiva.com.br/4.0/i386/stunnel-3.10-1cl.i386.rpm

ftp://atualizacoes.conectiva.com.br/4.0es/SRPMS/stunnel-3.10-1cl.src.rpm

ftp://atualizacoes.conectiva.com.br/4.0es/i386/stunnel-3.10-1cl.i386.rpm

ftp://atualizacoes.conectiva.com.br/4.1/SRPMS/stunnel-3.10-1cl.src.rpm

ftp://atualizacoes.conectiva.com.br/4.1/i386/stunnel-3.10-1cl.i386.rpm

ftp://atualizacoes.conectiva.com.br/4.2/SRPMS/stunnel-3.10-1cl.src.rpm

ftp://atualizacoes.conectiva.com.br/4.2/i386/stunnel-3.10-1cl.i386.rpm

ftp://atualizacoes.conectiva.com.br/5.0/SRPMS/stunnel-3.10-1cl.src.rpm

ftp://atualizacoes.conectiva.com.br/5.0/i386/stunnel-3.10-1cl.i386.rpm

ftp://atualizacoes.conectiva.com.br/5.1/SRPMS/stunnel-3.10-1cl.src.rpm

ftp://atualizacoes.conectiva.com.br/5.1/i386/stunnel-3.10-1cl.i386.rpm

ftp://atualizacoes.conectiva.com.br/6.0/SRPMS/stunnel-3.10-1cl.src.rpm

ftp://atualizacoes.conectiva.com.br/6.0/RPMS/stunnel-3.10-1cl.i386.rpm

ADDITIONAL INSTRUCTIONS
Users of Conectiva Linux version 6.0 or higher may use apt to
perform upgrades:
– 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] ftp://atualizacoes.conectiva.com.br
6.0/conectiva updates

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

Detailed instructions reagarding 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 can be
obtained at http://www.conectiva.com.br/contato