CVE-2022-3736— named configured to answer from stale cache may terminate unexpectedly while processing RRSIG queries
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I. Basic Information for CVE-2022-3736
Vulnerability Information
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Vulnerability Title
named configured to answer from stale cache may terminate unexpectedly while processing RRSIG queries
Source: NVD (National Vulnerability Database)
Vulnerability Description
BIND 9 resolver can crash when stale cache and stale answers are enabled, option `stale-answer-client-timeout` is set to a positive integer, and the resolver receives an RRSIG query. This issue affects BIND 9 versions 9.16.12 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.12-S1 through 9.16.36-S1.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
ISC BIND 安全漏洞
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。 BIND 9.16.0版本至9.16.36版本、9.18.0版本至9.18.10版本、9.19.0版本至9.19.8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，stale-answer-client-timeout被设置为正整数，并且解析器收到RRSIG查询时BIND解析器会崩溃。
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
II. Public POCs for CVE-2022-3736
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Same Patch Batch · ISC · 2023-01-25 · 4 CVEs total
| CVE-2022-3924 | 7.5 HIGH | named configured to answer from stale cache may terminate unexpectedly at recursive-client |
| CVE-2022-3488 | 7.5 HIGH | named may terminate unexpectedly when processing ECS options in repeated responses to iter |
| CVE-2022-3094 | 7.5 HIGH | An UPDATE message flood may cause named to exhaust all available memory |
IV. Related Vulnerabilities
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Memory leak in code preparing DNSSEC proofs of non-existence - CVE-2026-1519
Excessive NSEC3 iterations cause high CPU load during insecu - CVE-2025-13878
Malformed BRID/HHIT records can cause named to terminate une
Same vendor: ISC
- CVE-2026-3591
A stack use-after-return flaw in SIG(0) handling code may en - CVE-2026-3119
Authenticated query containing a TKEY record may cause named - CVE-2026-3104
Memory leak in code preparing DNSSEC proofs of non-existence - CVE-2026-1519
Excessive NSEC3 iterations cause high CPU load during insecu - CVE-2026-3608
Stack overflow in Kea daemons
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