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CVE-2022-3080— BIND 9 resolvers configured to answer from stale cache with zero stale-answer-client-timeout may terminate unexpectedly

Quick assessment

Affected
ISC BIND9
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ISC BIND是美国ISC公司的一套实现了DNS协议的开源软件。 ISC BIND 9.16.33之前版本、9.18.7之前的9.18.x版本、9.19.5之前的9.19.x版本存在安全漏洞，该漏洞源于当启用陈旧缓存和陈旧答案时，选项stale-answer-client-timeout设置为0，并且缓存中存在用于传入查询的陈旧CNAME时，解析器可能会崩溃。通过向解析器发送特定查询，攻击者可以导致命名崩溃。

CVSS 7.5 · High EPSS 1.94% · P79

Possible ATT&CK Techniques 1 AI

T1210 · Exploitation of Remote Services
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I. Basic Information for CVE-2022-3080

Vulnerability Information
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Vulnerability Title
BIND 9 resolvers configured to answer from stale cache with zero stale-answer-client-timeout may terminate unexpectedly
Source: CVE Program / CVE List V5
Vulnerability Description
By sending specific queries to the resolver, an attacker can cause named to crash.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
ISC BIND 注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ISC BIND是美国ISC公司的一套实现了DNS协议的开源软件。 ISC BIND 9.16.33之前版本、9.18.7之前的9.18.x版本、9.19.5之前的9.19.x版本存在安全漏洞，该漏洞源于当启用陈旧缓存和陈旧答案时，选项stale-answer-client-timeout设置为0，并且缓存中存在用于传入查询的陈旧CNAME时，解析器可能会崩溃。通过向解析器发送特定查询，攻击者可以导致命名崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
ISC BIND9 Open Source Branch 9.16 9.16.14 through versions before 9.16.33 -

II. Public POCs for CVE-2022-3080

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III. Intelligence Information for CVE-2022-3080

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Vendor Advisories for CVE-2022-3080 (3)

Mailing List Discussions for CVE-2022-3080 (4)

Other References for CVE-2022-3080 (1)

Same Patch Batch · ISC · 2022-09-21 · 6 CVEs total

CVE-2022-38178 7.5 HIGH Memory leaks in EdDSA DNSSEC verification code
CVE-2022-38177 7.5 HIGH Memory leak in ECDSA DNSSEC verification code
CVE-2022-2906 7.5 HIGH Memory leaks in code handling Diffie-Hellman key exchange via TKEY RRs (OpenSSL 3.0.0+ onl
CVE-2022-2881 5.5 MEDIUM Buffer overread in statistics channel code
CVE-2022-2795 5.3 MEDIUM Processing large delegations may severely degrade resolver performance

IV. Related Vulnerabilities

Same product: BIND9
Same vendor: ISC

V. Comments for CVE-2022-3080

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