Executive Summary
Summary | |
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Title | New bind9 packages fix cache poisoning |
Informations | |||
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Name | DSA-1961 | First vendor Publication | 2009-12-23 |
Vendor | Debian | Last vendor Modification | 2009-12-23 |
Severity (Vendor) | N/A | Revision | 1 |
Security-Database Scoring CVSS v3
Cvss vector : N/A | |||
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Overall CVSS Score | NA | ||
Base Score | NA | Environmental Score | NA |
impact SubScore | NA | Temporal Score | NA |
Exploitabality Sub Score | NA | ||
Calculate full CVSS 3.0 Vectors scores |
Security-Database Scoring CVSS v2
Cvss vector : (AV:N/AC:H/Au:N/C:N/I:P/A:N) | |||
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Cvss Base Score | 2.6 | Attack Range | Network |
Cvss Impact Score | 2.9 | Attack Complexity | High |
Cvss Expoit Score | 4.9 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
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. |
Original Source
Url : http://www.debian.org/security/2009/dsa-1961 |
Alert History
Date | Informations |
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2016-04-05 00:27:19 |
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2014-02-17 11:29:06 |
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2013-05-11 00:43:39 |
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