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[ GLSA 200505-17 ] Qpopper: Multiple Vulnerabilities
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GLSA
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Joined: 12 May 2004
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PostPosted: Mon May 23, 2005 8:10 pm    Post subject: [ GLSA 200505-17 ] Qpopper: Multiple Vulnerabilities Reply with quote

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:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-mail/qpopper-4.0.5-r3"


References

CAN-2005-1151
CAN-2005-1152


Last edited by GLSA on Sun May 07, 2006 4:57 pm; edited 1 time in total
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