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OpenConnect: User-assisted execution of arbitrary code — GLSA 201405-18

A buffer overflow in OpenConnect could result in execution of arbitrary code or Denial of Service.

Affected packages

Package net-misc/openconnect on all architectures
Affected versions < 4.08
Unaffected versions >= 4.08

Background

OpenConnect is a free client for Cisco AnyConnect SSL VPN software.

Description

A stack-based buffer overflow error has been discovered in OpenConnect.

Impact

A remote attacker could entice a user to connect to a malicious VPN server, possibly resulting in execution of arbitrary code with the privileges of the process, or a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All OpenConnect users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=net-misc/openconnect-4.08"

References

Release date
May 18, 2014

Latest revision
May 18, 2014: 1

Severity
normal

Exploitable
remote

Bugzilla entries