Vulnerability Assessment & Network Security Forums



If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important.  If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.


Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200609-11] BIND: Denial of Service


Vulnerability Assessment Details

[GLSA-200609-11] BIND: Denial of Service

Vulnerability Assessment Summary
BIND: Denial of Service

Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200609-11
(BIND: Denial of Service)


Queries for SIG records will cause an assertion error if more than one
SIG RRset is returned. Additionally, an INSIST failure can be triggered
by sending multiple recursive queries if the response to the query
arrives after all the clients looking for the response have left the
recursion queue.

Impact

A possible hacker having access to a recursive server can crash the server by
querying the SIG records where there are multiple SIG RRsets, or by
sending many recursive queries in a short time. The exposure can be
lowered by restricting the clients that can ask for recursion. An
attacker can also crash an authoritative server serving a DNSSEC zone
in which there are multiple SIG RRsets.

Workaround

There are no known workarounds at this time.

References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4095
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4096


Solution:
All BIND 9.3 users should update to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-dns/bind-9.3.2-r4"
All BIND 9.2 users should update to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-dns/bind-9.2.6-r4"


Network Security Threat Level: Medium


Networks Security ID:

Vulnerability Assessment Copyright: (C) 2006 Michel Arboi

Cables, Connectors

HP Renew DL360 G9 Dual E5-2643 v3 6-Core 3.4GHz 32GB 2x 146GB 15K SAS Rails RPS
$5640.0
HP Renew DL360 G9 Dual E5-2643 v3 6-Core 3.4GHz 32GB 2x 146GB 15K SAS Rails RPS pictureHP DL380e G8 Dual E5-2407 QC 2.2GHz 128GB 8x 1TB SAS P420/1GB 12 Bay LFF RPS
$1273.0
HP DL380e G8 Dual E5-2407 QC 2.2GHz 128GB 8x 1TB SAS P420/1GB 12 Bay LFF RPS pictureDell PowerEdge T430 2x E5-2630v4 2.2Ghz 10C 128GB 16x NEW 1.8TB 12G 10K SAS H730
$9750.0
Dell PowerEdge T430 2x E5-2630v4 2.2Ghz 10C 128GB 16x NEW 1.8TB 12G 10K SAS H730 pictureROKU Home Media System 3700X (K06010058)
$24.99
ROKU Home Media System 3700X (K06010058) picture


Discussions

No Discussions have been posted on this vulnerability.