DEBIAN-CVE-2009-4022

Advisory lineage Upstream: 1 Downstream: 1
Upstream
CVE-2009-4022
Downstream
DSA-1961-1
Published: 25 Nov 2009, 16:30
Last modified:28 Apr 2026, 20:11

Vulnerability Summary

Overall Risk (default)
minimal
0/100
CVSS Score
No data
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

25 Nov 2009, 16:30
Published
Vulnerability first disclosed
28 Apr 2026, 20:11
Last Modified
Vulnerability information updated

Description

Unspecified vulnerability in ISC BIND 9.0.x through 9.3.x, 9.4 before 9.4.3-P4, 9.5 before 9.5.2-P1, 9.6 before 9.6.1-P2, and 9.7 beta before 9.7.0b3, with DNSSEC validation enabled and checking disabled (CD), allows remote attackers to conduct DNS cache poisoning attacks by receiving a recursive client query and sending a response that contains an Additional section with crafted data, which is not properly handled when the response is processed "at the same time as requesting DNSSEC records (DO)," aka Bug 20438.

Affected Systems

  • debian•bind9

    < 1:9.6.1.dfsg.P2-1 | < 1:9.6.1.dfsg.P2-1 | < 1:9.6.1.dfsg.P2-1 | < 1:9.6.1.dfsg.P2-1

References (1)