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[ GLSA 200409-19 ] Heimdal: ftpd root escalation
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GLSA
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Joined: 13 Jun 2003
Posts: 4087
Location: Dresden, Germany

PostPosted: Thu Sep 16, 2004 9:46 am    Post subject: [ GLSA 200409-19 ] Heimdal: ftpd root escalation Reply with quote

Gentoo Linux Security Advisory

Title: Heimdal: ftpd root escalation (GLSA 200409-19)
Severity: high
Exploitable: remote
Date: September 16, 2004
Bug(s): #61412
ID: 200409-19

Synopsis

Several bugs exist in the Heimdal ftp daemon which could allow a remote attacker to gain root privileges.

Background

Heimdal is an implementation of Kerberos 5.

Affected Packages

Package: app-crypt/heimdal
Vulnerable: < 0.6.3
Unaffected: >= 0.6.3
Architectures: All supported architectures


Description

Przemyslaw Frasunek discovered several flaws in lukemftpd, which also apply to Heimdal ftpd's out-of-band signal handling code. Additionally, a potential vulnerability that could lead to Denial of Service by the Key Distribution Center (KDC) has been fixed in this version.

Impact

A remote attacker could be able to run arbitrary code with escalated privileges, which can result in a total compromise of the server.

Workaround

There is no known workaround at this time.

Resolution

All Heimdal users should upgrade to the latest version:
Code:
# emerge sync
# emerge -pv ">=app-crypt/heimdal-0.6.3"
# emerge ">=app-crypt/heimdal-0.6.3"


References

Heimdal advisory
Advisory by Przemyslaw Frasunek
CAN-2004-0794


Last edited by GLSA on Sun May 07, 2006 4:52 pm; edited 1 time in total
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