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[ GLSA 200405-13 ] neon heap-based buffer overflow
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GLSA
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Joined: 13 Jun 2003
Posts: 4079
Location: Dresden, Germany

PostPosted: Thu May 20, 2004 6:35 pm    Post subject: [ GLSA 200405-13 ] neon heap-based buffer overflow Reply with quote

Gentoo Linux Security Advisory

Title: neon heap-based buffer overflow (GLSA 200405-13)
Severity: normal
Exploitable: remote
Date: May 20, 2004
Bug(s): #51490
ID: 200405-13

Synopsis

A vulnerability potentially allowing remote execution of arbitrary code has been discovered in the neon library.

Background

neon provides an HTTP and WebDAV client library.

Affected Packages

Package: net-misc/neon
Vulnerable: <= 0.24.5
Unaffected: >= 0.24.6
Architectures: All supported architectures


Description

Stefan Esser discovered a vulnerability in the code of the neon library : if a malicious date string is passed to the ne_rfc1036_parse() function, it can trigger a string overflow into static heap variables.

Impact

Depending on the application linked against libneon and when connected to a malicious WebDAV server, this vulnerability could allow execution of arbitrary code with the rights of the user running that application.

Workaround

There is no known workaround at this time. All users are advised to upgrade to the latest available version of neon.

Resolution

All users of neon should upgrade to the latest stable version:
Code:
# emerge sync
# emerge -pv ">=net-misc/neon-0.24.6"
# emerge ">=net-misc/neon-0.24.6"


References

E-matters advisory 06/2004
CAN-2004-0398


Last edited by GLSA on Sun May 07, 2006 4:51 pm; edited 1 time in total
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