The SCO Group (SCO UnixWare) Information for VU#734644

ISC BIND 8 vulnerable to cache poisoning via negative responses

Status

Affected

Vendor Statement

UnixWare 7.1.3: Unaffected current version of bind is 9.2.1.
Open UNIX 8.0.0 (aka UnixWare 7.1.2) Unaffected current version of bind is 9.2.0.
UnixWare 7.1.1: Affected. Fix will be at

OpenServer: fix in-progress

OpenLinux: also fix in-progress

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Vendor References

None

Addendum

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SCO Security Advisory

Subject: UnixWare 7.1.1 : Bind: cache poisoning BIND 8 prior to 8.3.7 and BIND 8.4.x prior 8.4.2
Advisory number: CSSA-2003-SCO.33
Issue date: 2003 December 01
Cross reference: sr886768 fz528464 erg712479 CAN-2003-0914
______________________________________________________________________________


1. Problem Description

UnixWare 7.1.3 is unaffected by this issue because the
version of bind included in UnixWare 7.1.3 is 9.2.1.


Open UNIX is also unaffected by this issue because the version
of bind in Open UNIX 8.0.0 is 9.1.0.


CERT/CC Incident Note VU#734644

BIND is an implementation of the Domain Name System (DNS)
protocols. Successful exploitation of this vulnerability
may result in a temporary denial of service.


The Common Vulnerabilities and Exposures project (cve.mitre.org)
has assigned the name CAN-2003-0914 to this issue.



2. Vulnerable Supported Versions

System Binaries
----------------------------------------------------------------------
UnixWare 7.1.1 /usr/sbin/addr

/usr/sbin/dig
/usr/sbin/dnskeygen
/usr/sbin/dnsquery
/usr/sbin/host
/usr/sbin/in.named
/usr/sbin/irpd
/usr/sbin/mkservdb
/usr/sbin/named-bootconf
/usr/sbin/named-bootconf.pl
/usr/sbin/named-xfer
/usr/sbin/ndc
/usr/sbin/nslookup
/usr/sbin/nsupdate


3. Solution

The proper solution is to install the latest packages.


4. UnixWare 7.1.1

4.1 Location of Fixed Binaries

ftp://ftp.sco.com/pub/updates/UnixWare/CSSA-2003-SCO.33


4.2 Verification

MD5 (erg712479.Z) = c1faea2a6a1da952e88c5123f88a2f89

md5 is available for download from
ftp://ftp.sco.com/pub/security/tools



4.3 Installing Fixed Binaries

Upgrade the affected binaries with the following sequence:

Unknown installation method


5. References

Specific references for this advisory:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0914


SCO security resources:
http://www.sco.com/support/security/index.html


This security fix closes SCO incidents sr886768 fz528464
erg712479.



6. Disclaimer

SCO is not responsible for the misuse of any of the information
we provide on this website and/or through our security
advisories. Our advisories are a service to our customers
intended to promote secure installation and use of SCO
products.

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