Bug 459620 (CVE-2008-3746)

Summary:	CVE-2008-3746 neon: NULL ptr dereference in the Digest authentication support (DoS possible)
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	jorton
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2008-10-16 07:35:47 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	460415
Bug Blocks:

Description Jan Lieskovsky 2008-08-20 16:49:29 UTC

Description:

A NULL pointer deference in the Digest authentication support in neon
versions 0.28.0 through 0.28.2 inclusive allows a malicious server to
crash a client application, resulting in possible denial of service.


References:

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=476571
http://bugs.gentoo.org/show_bug.cgi?id=234826


Proposed patch:
 http://bugs.debian.org/cgi-bin/bugreport.cgi?msg=19;filename=0001-fix-segfault-if-base-path-is-NULL.patch;att=1;bug=476571

Affected versions:

CVE-2008-3746: This issue does not affect the versions  of the neon package,
as shipped with Red Hat Enteprise Linux 4 and 5.

CVE-2008-3746: This issue affects the versions of the neon package,
as shipped with Fedora release 8 and 9.

Comment 1 Tomas Hoger 2008-08-21 06:59:02 UTC

According to Joe's mail, this issue should only affect 0.28.0 - 0.28.2, so Fedora 8 packages should be unaffected, as those are based on 0.27.x:

  http://www.openwall.com/lists/oss-security/2008/08/15/4

Patch applied in upstream version 0.28.3:

  http://www.openwall.com/lists/oss-security/2008/08/20/5
  http://lists.manyfish.co.uk/pipermail/neon/2008-August/000038.html
  http://lists.manyfish.co.uk/pipermail/neon/2008-August/000040.html

Comment 3 Fedora Update System 2008-08-28 20:30:41 UTC

neon-0.28.3-1.fc9 has been submitted as an update for Fedora 9.
http://admin.fedoraproject.org/updates/neon-0.28.3-1.fc9

Comment 4 Fedora Update System 2008-10-16 02:07:17 UTC

neon-0.28.3-1.fc9 has been pushed to the Fedora 9 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 5 Red Hat Product Security 2008-10-16 07:35:47 UTC

This issue was addressed in:

Fedora:
  https://admin.fedoraproject.org/updates/F9/FEDORA-2008-7661