GLSA 200505-17: Qpopper: Multiple Vulnerabilities

http://security.gentoo.org/

Severity:	normal
Title:	Qpopper: Multiple Vulnerabilities
Date:	05/23/2005
Bugs:	#90622
ID:	200505-17

Synopsis

Qpopper contains two vulnerabilities allowing an attacker to overwrite arbitrary files and create files with insecure permissions.

Background

Qpopper is a widely used server for the POP3 protocol.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-mail/qpopper	< 4.0.5-r3	>= 4.0.5-r3	All supported architectures

Description

Jens Steube discovered that Qpopper doesn't drop privileges to process local files from normal users (CAN-2005-1151). The upstream developers discovered that Qpopper can be forced to create group or world writeable files (CAN-2005-1152).

Impact

A malicious local attacker could exploit Qpopper to overwrite arbitrary files as root or create new files which are group or world writeable.

Workaround

There is no known workaround at this time.

Resolution

All Qpopper users should upgrade to the latest available version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-mail/qpopper-4.0.5-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-200505-17.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.