Insufficient Entropy Affecting bind9 package, versions <1:9.5.0.dfsg-5


Severity

Recommended
high

Based on Debian security rating

    Threat Intelligence

    Exploit Maturity
    Mature
    EPSS
    11.76% (96th percentile)

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  • Snyk ID SNYK-DEBIAN12-BIND9-1542032
  • published 8 Jul 2008
  • disclosed 8 Jul 2008

How to fix?

Upgrade Debian:12 bind9 to version 1:9.5.0.dfsg-5 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bind9 package and not the bind9 package as distributed by Debian. See How to fix? for Debian:12 relevant fixed versions and status.

The DNS protocol, as implemented in (1) BIND 8 and 9 before 9.5.0-P1, 9.4.2-P1, and 9.3.5-P1; (2) Microsoft DNS in Windows 2000 SP4, XP SP2 and SP3, and Server 2003 SP1 and SP2; and other implementations allow remote attackers to spoof DNS traffic via a birthday attack that uses in-bailiwick referrals to conduct cache poisoning against recursive resolvers, related to insufficient randomness of DNS transaction IDs and source ports, aka "DNS Insufficient Socket Entropy Vulnerability" or "the Kaminsky bug."

References

CVSS Scores

version 3.1
Expand this section

NVD

6.8 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Changed
  • Confidentiality (C)
    None
  • Integrity (I)
    High
  • Availability (A)
    None