漏洞信息
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Vulnerability Title
SIG(0) validation during query flood may lead to undefined behavior
Vulnerability Description
Undefined behavior may result due to a race condition leading to a use-after-free violation. If BIND receives an incoming DNS message signed with SIG(0), it begins work to validate that signature. If, during that validation, the "recursive-clients" limit is reached (as would occur during a query flood), and that same DNS message is discarded per the limit, there is a brief window of time while the SIG(0) validation may attempt to read the now-discarded DNS message. This issue affects BIND 9 versions 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, and 9.20.9-S1 through 9.20.22-S1. BIND 9 versions 9.18.28 through 9.18.49 and 9.18.28-S1 through 9.18.49-S1 are NOT affected.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vulnerability Type
使用共享资源的并发执行不恰当同步问题(竞争条件)
Vulnerability Title
ISC BIND 9 竞争条件问题漏洞
Vulnerability Description
ISC BIND 9是ISC组织的一个域名系统软件。 ISC BIND 9存在竞争条件问题漏洞,该漏洞源于竞争条件导致释放后重用,可能导致未定义行为。以下版本受到影响:9.20.0版本至9.20.22版本、9.21.0版本至9.21.21版本和9.20.9-S1版本至9.20.22-S1版本。
CVSS Information
N/A
Vulnerability Type
N/A