Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
[ GLSA 200702-06 ] BIND: Denial of Service
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index News & Announcements
View previous topic :: View next topic  
Author Message
GLSA
Veteran
Veteran


Joined: 12 May 2004
Posts: 1540

PostPosted: Sat Feb 17, 2007 10:26 pm    Post subject: [ GLSA 200702-06 ] BIND: Denial of Service Reply with quote

Gentoo Linux Security Advisory

Title: BIND: Denial of Service (GLSA 200702-06)
Severity: normal
Exploitable: remote
Date: February 17, 2007
Bug(s): #163692
ID: 200702-06

Synopsis

ISC BIND contains two vulnerabilities allowing a Denial of Service under certain conditions.

Background

ISC BIND is the Internet Systems Consortium implementation of the Domain Name System (DNS) protocol.

Affected Packages

Package: net-dns/bind
Vulnerable: < 9.3.4
Unaffected: >= 9.3.4
Unaffected: >= 9.2.8 < 9.2.9
Architectures: All supported architectures


Description

An unspecified improper usage of an already freed context has been reported. Additionally, an assertion error could be triggered in the DNSSEC validation of some responses to type ANY queries with multiple RRsets.

Impact

A remote attacker could crash the server through unspecified vectors or, if DNSSEC validation is enabled, by sending certain crafted ANY queries.

Workaround

There is no known workaround at this time for the first issue. The DNSSEC validation Denial of Service can be prevented by disabling DNSSEC validation until the upgrade to a fixed version. Note that DNSSEC validation is disabled on a default configuration.

Resolution

All ISC BIND 9.3 users should upgrade to the latest version:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-dns/bind-9.3.4"
All ISC BIND 9.2 users should upgrade to the latest version:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-dns/bind-9.2.8"


References

CVE-2007-0493
CVE-2007-0494


Last edited by GLSA on Sat Apr 19, 2008 4:19 am; edited 1 time in total
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index News & Announcements All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum