GLSA 202405-24: ytnef: Multiple Vulnerabilities

http://security.gentoo.org/

Severity:	normal
Title:	ytnef: Multiple Vulnerabilities
Date:	05/08/2024
Bugs:	#774255
ID:	202405-24

Synopsis

Multiple vulnerabilities have been discovered in ytnef, the worst of which could potentially lead to remote code execution.

Background

ytnef is a TNEF stream reader for reading winmail.dat files.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-mail/ytnef	< 2.0	>= 2.0	All supported architectures

Description

The TNEFSubjectHandler function in lib/ytnef.c allows remote attackers to cause a denial-of-service (and potentially code execution) due to a double free which can be triggered via a crafted file. The SwapWord function in lib/ytnef.c allows remote attackers to cause a denial-of-service (and potentially code execution) due to a heap buffer overflow which can be triggered via a crafted file.

Impact

Please review the referenced CVE identifiers for details.

Workaround

There is no known workaround at this time.

Resolution

All ytnef users should upgrade to the latest version:

          # emerge --sync
          # emerge --ask --oneshot --verbose ">=net-mail/ytnef-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-202405-24.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.