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Debian Security Advisory DSA 1961-1 (bind9)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
The remote host is missing an update to bind9 announced via advisory DSA 1961-1.
Insight
Insight
Michael Sinatra discovered that the DNS resolver component in BIND does not properly check DNS records contained in additional sections of DNS responses, leading to a cache poisoning vulnerability. This vulnerability is only present in resolvers which have been configured with DNSSEC trust anchors, which is still rare. Note that this update contains an internal ABI change, which means that all BIND-related packages (bind9, dnsutils and the library packages) must be updated at the same time (preferably using apt-get update and apt-get upgrade). In the unlikely event that you have compiled your own software against libdns, you must recompile this programs, too. For the old stable distribution (etch), this problem has been fixed in version 9.3.4-2etch6. For the stable distribution (lenny), this problem has been fixed in version 9.5.1.dfsg.P3-1+lenny1. For the unstable distribution (sid) and the testing distribution (squeeze), this problem has been fixed in version 9.6.1.dfsg.P2-1. We recommend that you upgrade your bind9 packages.
Solution
Solution
https://secure1.securityspace.com/smysecure/catid.html?in=DSA%201961-1