GLSA 202003-63: GNU IDN Library 2: Multiple vulnerabilities

http://security.gentoo.org/

Severity:	normal
Title:	GNU IDN Library 2: Multiple vulnerabilities
Date:	03/30/2020
Bugs:	#697752
ID:	202003-63

Synopsis

Multiple vulnerabilities have been found in GNU IDN Library 2, the worst of which could result in the remote execution of arbitrary code.

Background

GNU IDN Library 2 is an implementation of the IDNA2008 + TR46 specifications (RFC 5890, RFC 5891, RFC 5892, RFC 5893, TR 46).

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-dns/libidn2	< 2.2.0	>= 2.2.0	All supported architectures

Description

Multiple vulnerabilities have been discovered in GNU IDN Library 2. Please review the CVE identifiers referenced below for details.

Impact

A remote attacker could send specially crafted input, possibly resulting in execution of arbitrary code with the privileges of the process, impersonation of domains or a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All GNU IDN Library 2 users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=net-dns/libidn2-2.2.0"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-202003-63.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.