Bug 1096016 (CVE-2014-3214) - CVE-2014-3214 bind: assertion failure when using prefetch
Summary: CVE-2014-3214 bind: assertion failure when using prefetch
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2014-3214
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2014-05-09 05:57 UTC by Murray McAllister
Modified: 2021-02-17 06:34 UTC (History)
6 users (show)

Fixed In Version: bind 9.10.0-P1
Clone Of:
Environment:
Last Closed: 2014-05-09 06:25:46 UTC
Embargoed:


Attachments (Terms of Use)

Description Murray McAllister 2014-05-09 05:57:33 UTC
Common Vulnerabilities and Exposures assigned an identifier CVE-2014-3214 to
the following vulnerability:

Name: CVE-2014-3214
URL: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-3214
Assigned: 20140503
Reference: https://kb.isc.org/article/AA-01161

The prefetch implementation in named in ISC BIND 9.10.0, when a
recursive nameserver is enabled, allows remote attackers to cause a
denial of service (REQUIRE assertion failure and daemon exit) via a
DNS query that triggers a response with unspecified attributes.

The prefetch option was introduced in BIND 9.10.0b1:

https://kb.isc.org/article/AA-01138/81/BIND-9.10.0b1-Release-Notes.html

Based on the issue description, the fix is possibly this NULL check in query.c:

7646                                         dns_name_t *name;
7647                                         name = (fname != NULL) ? fname : tname;
7648                                         query_prefetch(client, name, rdataset);

The version of BIND in Red Hat Enterprise Linux is older than 9.10, and also does not contain query_prefetch()

Comment 1 Murray McAllister 2014-05-09 06:08:22 UTC
The affected functionality does not appear to be in bind10 in Fedora either.

Comment 2 Murray McAllister 2014-05-09 06:19:49 UTC
Statement:

Not vulnerable. This issue did not affect the versions of bind or bind97 as shipped with Red Hat Enterprise Linux 5, 6 and 7.

Comment 3 Tomáš Hozza 2014-05-12 06:59:43 UTC
(In reply to Murray McAllister from comment #1)
> The affected functionality does not appear to be in bind10 in Fedora either.

Note that bind10 is not BIND 9.10!

Comment 4 Vincent Danen 2014-11-25 17:31:53 UTC
External References:

https://kb.isc.org/article/AA-01161/


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