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[ GLSA 200708-06 ] Net::DNS: Multiple vulnerabilities
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GLSA
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Joined: 12 May 2004
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PostPosted: Sat Aug 11, 2007 10:26 pm    Post subject: [ GLSA 200708-06 ] Net::DNS: Multiple vulnerabilities Reply with quote

Gentoo Linux Security Advisory

Title: Net::DNS: Multiple vulnerabilities (GLSA 200708-06)
Severity: normal
Exploitable: remote
Date: August 11, 2007
Bug(s): #184029
ID: 200708-06

Synopsis


Multiple vulnerabilities have been discovered in the Net::DNS Perl module,
allowing for a Denial of Service and a cache poisoning attack.


Background


Net::DNS is a Perl implementation of a DNS resolver.


Affected Packages

Package: dev-perl/Net-DNS
Vulnerable: < 0.60
Unaffected: >= 0.60
Architectures: All supported architectures


Description


hjp discovered an error when handling DNS query IDs which make them
partially predictable. Steffen Ullrich discovered an error in the
dn_expand() function which could lead to an endless loop.


Impact


A remote attacker could send a specially crafted DNS request to the
server which could result in a Denial of Service with an infinite
recursion, or perform a cache poisoning attack.


Workaround


There is no known workaround at this time.


Resolution


All Net::DNS users should upgrade to the latest version:
Code:
# emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-perl/Net-DNS-0.60"


References

CVE-2007-3377
CVE-2007-3409


Last edited by GLSA on Mon Mar 21, 2011 4:24 am; edited 2 times in total
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