stunnel: Arbitrary code execution
Gentoo Linux Security Advisory
||GLSA 201402-08 / stunnel
||February 06, 2014
||February 07, 2014: 4
All supported architectures
A vulnerability has been found in stunnel, allowing for the
execution of arbitrary code.
The stunnel program is designed to work as an SSL encryption wrapper
between a client and a local or remote server.
A buffer overflow vulnerability has been discovered in stunnel. Please
review the CVE identifier referenced below for details.
A remote attacker could entice a user to connect to a malicious proxy
server, resulting in the execution of arbitrary code within the
configured chroot directory, with the privileges of the user running
stunnel. Please review the references below for details.
There is no known workaround at this time.
All stunnel users should upgrade to the latest version:
Code Listing 3.1: Resolution
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/stunnel-4.56-r1"