CVE-2022-38177— Memory leak in ECDSA DNSSEC verification code
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I. Basic Information for CVE-2022-38177
Vulnerability Information
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Vulnerability Title
Memory leak in ECDSA DNSSEC verification code
Source: NVD (National Vulnerability Database)
Vulnerability Description
By spoofing the target resolver with responses that have a malformed ECDSA signature, an attacker can trigger a small memory leak. It is possible to gradually erode available memory to the point where named crashes for lack of resources.
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 数据伪造问题漏洞
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 9.8.4版本至9.16.32版本存在安全漏洞，该漏洞源于使用格式错误的ECDSA签名，欺骗目标解析程序，导致内存因资源不足而崩溃。
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-2022-38177
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- https://www.debian.org/security/2022/dsa-5235vendor-advisory
- https://security.gentoo.org/glsa/202210-25vendor-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2022-38177
Same Patch Batch · ISC · 2022-09-21 · 6 CVEs total
| CVE-2022-2906 | 7.5 HIGH | Memory leaks in code handling Diffie-Hellman key exchange via TKEY RRs (OpenSSL 3.0.0+ onl |
| CVE-2022-3080 | 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-2022-2881 | 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
- CVE-2022-3080
BIND 9 resolvers configured to answer from stale cache with - CVE-2022-38178
Memory leaks in EdDSA DNSSEC verification code - CVE-2022-2881
Buffer overread in statistics channel 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-2026-3591
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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