GLSA 202003-19: PPP: Buffer overflow

http://security.gentoo.org/

Severity:	high
Title:	PPP: Buffer overflow
Date:	03/15/2020
Bugs:	#710308
ID:	202003-19

Synopsis

A buffer overflow in PPP might allow a remote attacker to execute arbitrary code.

Background

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

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-dialup/ppp	< 2.4.8	>= 2.4.8	All supported architectures

Description

It was discovered that bounds check in PPP for the rhostname was improperly constructed in the EAP request and response functions.

Impact

A remote attacker, by sending specially crafted authentication data, could possibly execute arbitrary code with the privileges of the process or 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-2.4.8"

References

CVE-2020-8597

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-202003-19.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.