Bug 353097 (CVE-2011-0530)

Summary:	<sys-block/nbd-2.9.20: buffer overflow (CVE-2011-0530)
Product:	Gentoo Security	Reporter:	Paweł Hajdan, Jr. (RETIRED) <phajdan.jr>
Component:	Vulnerabilities	Assignee:	Gentoo Security <security>
Status:	RESOLVED FIXED
Severity:	major	CC:	base-system
Priority:	High
Version:	unspecified
Hardware:	All
OS:	Linux
URL:	https://bugzilla.redhat.com/show_bug.cgi?id=673562
Whiteboard:	C1 [glsa]
Package list:		Runtime testing required:	---

Description Paweł Hajdan, Jr. (RETIRED) gentoo-dev

2011-01-28 21:32:28 UTC

Originally, CVE-2005-3534:
[1] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3534

has been assigned to NBD and addressed in nbd-v2.8.3 version:
[2]
http://sourceforge.net/project/shownotes.php?release_id=380202&group_id=13229

via changeset:
[3] https://github.com/yoe/nbd/commit/4ed24fe0d64c7cc9963c57b52cad1555ad7c6b60

But nbd-v2.9.0:
[4] http://sourceforge.net/projects/nbd/files/nbd/2.9.0/

contains the issue again. This flaw was fixed second time
via upstream changeset:
[5] https://github.com/yoe/nbd/commit/3ef52043861ab16352d49af89e048ba6339d6df8

References:
[6] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=611187

https://bugzilla.redhat.com/show_bug.cgi?id=673562

Comment 1 SpanKY gentoo-dev

2011-03-01 01:52:43 UTC

i think nbd-2.9.20 is fixed, and it's in the tree now

Comment 2 Tim Sammut (RETIRED) gentoo-dev

2011-03-01 03:48:26 UTC

(In reply to comment #1)
> i think nbd-2.9.20 is fixed, and it's in the tree now
> 

Great, thanks.

Arches, please test and mark stable:
=sys-block/nbd-2.9.20
Target keywords : "amd64 ppc ppc64 x86"

Comment 3 Markos Chandras (RETIRED) gentoo-dev

2011-03-01 08:46:19 UTC

amd64 done

Comment 4 Andreas Schürch gentoo-dev

2011-03-02 07:53:55 UTC

I tested on x86 but stopped "make check" after a few hours as it looks like an infinite loop!?
However, the server & client seem to work nevertheless.

Comment 5 Thomas Kahle (RETIRED) gentoo-dev

2011-03-02 08:02:57 UTC

x86 done. Thanks Andreas.  I saw the same behaviour.  Could you file a bug for that?

Comment 6 Kacper Kowalik (Xarthisius) (RETIRED) gentoo-dev

2011-03-02 08:25:33 UTC

ppc/ppc64 stable

Comment 7 Tim Sammut (RETIRED) gentoo-dev

2011-03-03 07:07:37 UTC

Thank you everyone. GLSA request filed.

Comment 8 Andreas Schürch gentoo-dev

2011-03-04 05:49:06 UTC

(In reply to comment #5)
> x86 done. Thanks Andreas.  I saw the same behaviour.  Could you file a bug for
> that?
> 
I started it again and left it running in a screen session, 24 hours later it really finished successful! :-)

Comment 9 GLSAMaker/CVETool Bot gentoo-dev

2011-06-24 00:30:18 UTC

CVE-2011-0530 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0530):
  Buffer overflow in the mainloop function in nbd-server.c in the server in
  Network Block Device (nbd) before 2.9.20 might allow remote attackers to
  execute arbitrary code via a long request.  NOTE: this issue exists because
  of a CVE-2005-3534 regression.

Comment 10 GLSAMaker/CVETool Bot gentoo-dev

2012-06-25 19:23:21 UTC

This issue was resolved and addressed in
 GLSA 201206-35 at http://security.gentoo.org/glsa/glsa-201206-35.xml
by GLSA coordinator Stefan Behte (craig).