Bug 557983 (CVE-2010-0382)

Summary:	CVE-2010-0382 bind: out-of-bailiwick data vulnerability due to regression while fixing CVE-2009-4022
Product:	[Other] Security Response	Reporter:	Vincent Danen <vdanen>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	atkac, dwalsh, qe-baseos-daemons
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
URL:	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2010-0382
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2010-01-25 17:46:54 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:	555119
Bug Blocks:

Description Vincent Danen 2010-01-22 23:15:17 UTC

Common Vulnerabilities and Exposures assigned an identifier CVE-2010-0382 to
the following vulnerability:

Name: CVE-2010-0382
URL: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-0382
Assigned: 20100122
Reference: CONFIRM: https://www.isc.org/advisories/CVE-2009-4022v6

ISC BIND 9.0.x through 9.3.x, 9.4 before 9.4.3-P5, 9.5 before
9.5.2-P2, 9.6 before 9.6.1-P3, and 9.7.0 beta handles out-of-bailiwick
data accompanying a secure response without re-fetching from the
original source, which allows remote attackers to have an unspecified
impact via a crafted response, aka Bug 20819.  NOTE: this vulnerability
exists because of a regression during the fix for CVE-2009-4022

Comment 1 Vincent Danen 2010-01-22 23:26:53 UTC

I'm unsure whether this got fixed along with CVE-2010-0290 (bug #557121) because that bug is also due to a regression of CVE-2009-4022.  The upstream advisory states:

2828. [security] Cached CNAME or DNAME RR could be returned to clients without DNSSEC validation. [RT #20737]

2831. [security] Do not attempt to validate or cache out-of-bailiwick data returned with a secure answer; it must be re-fetched from its original source and validated in that context. (Regression bug introduced by fix for RT #20438) [RT #20819] 

So it's listing it as two separate issues (2828 would correspond with CVE-2010-0290) which is probably why MITRE assigned two CVEs.  What is unclear is whether or not the fix we used for CVE-2010-0290 also corrects this issue.

Comment 2 Adam Tkac 2010-01-25 08:35:17 UTC

This issue is fixed together with CVE-2010-0290 (bug #557121). Updated packages are already released (for RHEL5).

Comment 3 Vincent Danen 2010-01-25 17:46:54 UTC

Thanks for that confirmation Adam.

This issue is then resolved via RHSA-2010:0062:

https://rhn.redhat.com/errata/RHSA-2010-0062.html