[ GLSA 200505-17 ] Qpopper: Multiple Vulnerabilities

[GLSA]

Gentoo Linux Security Advisory

Title: Qpopper: Multiple Vulnerabilities (GLSA 200505-17)
Severity: normal
Exploitable: local
Date: May 23, 2005
Bug(s): #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: net-mail/qpopper
Vulnerable: < 4.0.5-r3
Unaffected: >= 4.0.5-r3
Architectures: 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: