Bug 170682 - CAN-2005-3185 NTLM buffer overflow
Summary: CAN-2005-3185 NTLM buffer overflow
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: curl
Version: 4
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Ivana Varekova
QA Contact:
URL: http://article.gmane.org/gmane.comp.w...
Whiteboard: reported=20051012,public=20051012,imp...
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2005-10-13 18:06 UTC by Josh Bressers
Modified: 2007-11-30 22:11 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2005-10-19 14:29:54 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Josh Bressers 2005-10-13 18:06:53 UTC
+++ This bug was initially created as a clone of Bug #170678 +++

This text was scavanged from the libcurl advisory:

libcurl's NTLM function can overflow a stack-based buffer if given a too long
user name or domain name. This would happen if you enable NTLM authentication
and either:

 A - pass in a user name and domain name to libcurl that together are longer
     than 192 bytes

 B - allow (lib)curl to follow HTTP "redirects" (Location: and the appropriate
     HTTP 30x response code) and the new URL contains a URL with a user name
     and domain name that together are longer than 192 bytes

-- Additional comment from bressers on 2005-10-13 13:24 EST --
Created an attachment (id=119931)
Proposed patch from upstream

Comment 1 Josh Bressers 2005-10-13 18:07:42 UTC
This issue also affects FC3

Comment 2 Mark J. Cox 2005-10-14 10:23:34 UTC
On Fedora Core 4 this is not a security issue; curl is compiled using
-D_FORTIFY_SOURCE=2 which catches and blocks this issue.  Therefore on Fedora
Core 4 this can only result in the program being aborted, which is not classed
as a security issue.

Please make a note of this in the advisory of any FC4 update to curl.

Comment 3 Ivana Varekova 2005-10-18 13:53:50 UTC
This bug is fixed in the last fc3 version.


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