CVE-2009-4022
bind9 - cache poisoning
EPSS 8.0%
描述
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.
如何修補 CVE-2009-4022
要修補 CVE-2009-4022,請將受影響套件升級到下列已修補版本。
- —升級至 1:9.6.1.dfsg.P2-1 或更新版本
- —升級至 1:9.3.4-2etch6 或更新版本
CVE-2009-4022 正在被利用嗎?
中等 — EPSS 為 8.0%,可持續追蹤但非最高優先。
受影響套件(2)
- from 0, < 1:9.6.1.dfsg.P2-1
- from 0, < 1:9.3.4-2etch6