Bug 417079 (CVE-2012-2942) – <net-proxy/haproxy-1.4.21 : Trash Buffer Overflow Vulnerability (CVE-2012-2942)

• Product: Gentoo Security
• Status: RESOLVED FIXED

[Description Agostino Sarubbo 2012-05-22 13:19:08 UTC]

From secunia at $URL:

Description
A vulnerability has been reported in HAProxy, which can be exploited by malicious people to potentially compromise a vulnerable system.

The vulnerability is caused due a boundary error when copying data into the trash buffer and can be exploited to cause a buffer overflow.

Successful exploitation may allow execution of arbitrary code, but requires that the global.tune.bufsize configuration option is set to a value greater than the default and that header rewriting is configured e.g. via the reqrep or rsprep directives.

The vulnerability is reported in version 1.4.20. Prior versions may also be affected.


Solution
Update to version 1.4.21.

[Comment 1 Christian Ruppert (idl0r) 2012-05-22 13:51:49 UTC]

1.4.21 has just been committed.

[Comment 2 Agostino Sarubbo 2012-05-22 16:59:50 UTC]

arches, please test and mark stable:
=net-proxy/haproxy-1.4.21
target KEYWORDS : "amd64 ppc x86"

[Comment 3 Johannes Huber (RETIRED) 2012-05-22 18:19:13 UTC]

x86 stable

[Comment 4 Agostino Sarubbo 2012-05-22 19:02:58 UTC]

amd64 stable

[Comment 5 Stefan Behte (RETIRED) 2012-06-02 14:05:34 UTC]

No problems with it in production btw.
*ping ppc*

[Comment 6 Brent Baude (RETIRED) 2012-06-08 18:05:55 UTC]

ppc done

[Comment 7 Tim Sammut (RETIRED) 2012-06-10 15:38:37 UTC]

Thanks, folks. GLSA request filed.

[Comment 8 GLSAMaker/CVETool Bot 2012-06-15 19:18:37 UTC]

CVE-2012-2942 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2942):
  Buffer overflow in the trash buffer in the header capture functionality in
  HAProxy before 1.4.21, when global.tune.bufsize is set to a value greater
  than the default and header rewriting is enabled, allows remote attackers to
  cause a denial of service and possibly execute arbitrary code via
  unspecified vectors.

[Comment 9 Sean Amoss (RETIRED) 2012-06-15 19:21:14 UTC]

Duplicate CVE identifiers have been assigned to this issue. Red Hat has requested clarification/rejection from Mitre [1], but there has not been a response as of yet.

[1] http://www.openwall.com/lists/oss-security/2012/05/28/1

[Comment 10 Sean Amoss (RETIRED) 2012-09-27 19:49:48 UTC]

(In reply to comment #9)
> Duplicate CVE identifiers have been assigned to this issue. Red Hat has
> requested clarification/rejection from Mitre [1], but there has not been a
> response as of yet.
> 
> [1] http://www.openwall.com/lists/oss-security/2012/05/28/1

Vulnerability Summary for CVE-2012-2391
Original release date:08/17/2012
Last revised:08/17/2012
Source: US-CERT/NIST
Overview
** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2012-2942. Reason: This candidate is a duplicate of CVE-2012-2942. Notes: All CVE users should reference CVE-2012-2942 instead of this candidate. All references and descriptions in this candidate have been removed to prevent accidental usage.

[Comment 11 GLSAMaker/CVETool Bot 2013-01-09 00:26:52 UTC]

This issue was resolved and addressed in
 GLSA 201301-02 at http://security.gentoo.org/glsa/glsa-201301-02.xml
by GLSA coordinator Sean Amoss (ackle).