CVE-2022-2881— Buffer overread in statistics channel code
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 9.18.7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，该漏洞源于重用HTTP连接从stats通道请求统计信息时，连续响应的内容长度可能会增长到超过分配缓冲区的末尾，可能会导致读取超出缓冲区的末尾并读取它不应该读取的内存，或者使进程崩溃。
Possible ATT&CK Techniques 1 AI
T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2022-2881
Vulnerability Information
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Vulnerability Title
Buffer overread in statistics channel code
Source: CVE Program / CVE List V5
Vulnerability Description
The underlying bug might cause read past end of the buffer and either read memory it should not read, or crash the process.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
ISC BIND 缓冲区错误漏洞
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 9.18.7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，该漏洞源于重用HTTP连接从stats通道请求统计信息时，连续响应的内容长度可能会增长到超过分配缓冲区的末尾，可能会导致读取超出缓冲区的末尾并读取它不应该读取的内存，或者使进程崩溃。
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-2022-2881
| # | POC Description | Source Link | Shenlong Link |
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Vendor Advisories for CVE-2022-2881 (1)
-
https://security.gentoo.org/glsa/202210-25 vendor-advisory
Mailing List Discussions for CVE-2022-2881 (1)
Other References for CVE-2022-2881 (1)
Same Patch Batch · ISC · 2022-09-21 · 6 CVEs total
| CVE-2022-3080 | 7.5 HIGH | BIND 9 resolvers configured to answer from stale cache with zero stale-answer-client-timeo |
| 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-2022-2795 | 5.3 MEDIUM | Processing large delegations may severely degrade resolver performance |
IV. Related Vulnerabilities
Same product: BIND9
-
CVE-2022-3080
BIND 9 resolvers configured to answer from stale cache with -
CVE-2022-38178
Memory leaks in EdDSA DNSSEC verification code -
CVE-2022-38177
Memory leak in ECDSA DNSSEC verification code -
CVE-2022-2906
Memory leaks in code handling Diffie-Hellman key exchange vi -
CVE-2022-2795
Processing large delegations may severely degrade resolver p
Same vendor: ISC
-
CVE-2026-77119
NSEC3 insecure-referral proof can use unrelated cached NSEC3 -
CVE-2026-75029
Message parser retains every identical singleton RDATA, enab -
CVE-2026-19668
Resource Exhaustion via Excessive DNSSEC Cryptographic Mater -
CVE-2026-19033
Unauthenticated IXFR deltas are applied to the live zone bef -
CVE-2026-80274
Validating resolver can abort while caching a mismatched NOQ
V. Comments for CVE-2022-2881
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