GLSA 201701-50: PPP: Buffer overflow

Severity:normal
Title:PPP: Buffer overflow
Date:01/23/2017
Bugs: #546554
ID:201701-50

Synopsis

A buffer overflow in PPP might allow remote attackers to cause a Denial of Service condition.

Background

PPP is a Unix implementation of the Point-to-Point Protocol

Affected packages

Package Vulnerable Unaffected Architecture(s)
net-dialup/ppp < 2.4.7-r3 >= 2.4.7-r3 All supported architectures

Description

A buffer overflow was discovered in the rc_mksid function in plugins/radius/util.c in PPP when the PID for pppd is greater than 65535.

Impact

A remote attacker could cause a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All PPP users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=net-dialup/ppp-2.4.7-r3"
    

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201701-50.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

License

Copyright 2010 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.

Thank you!