CVE-2022-2906— Memory leaks in code handling Diffie-Hellman key exchange via TKEY RRs (OpenSSL 3.0.0+ only)
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I. Basic Information for CVE-2022-2906
Vulnerability Information
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Vulnerability Title
Memory leaks in code handling Diffie-Hellman key exchange via TKEY RRs (OpenSSL 3.0.0+ only)
Source: NVD (National Vulnerability Database)
Vulnerability Description
An attacker can leverage this flaw to gradually erode available memory to the point where named crashes for lack of resources. Upon restart the attacker would have to begin again, but nevertheless there is the potential to deny service.
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。 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OpenSSL 1.x和OpenSSL 3.0之间的更改暴露了命名中的一个缺陷，当在Diffie-Hellman模式下与OpenSSL 3.0.0及更高版本一起使用TKEY记录时，该缺陷会导致密钥处理中出现少量内存泄漏。攻击者可以利用此漏洞逐渐侵蚀可用内存，以至于命名的内存因缺乏资源而崩溃，重新启动后，攻击者将不得不重新开始，但
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-2022-2906
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- https://security.gentoo.org/glsa/202210-25vendor-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2022-2906
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-2022-38177 | 7.5 HIGH | Memory leak in ECDSA DNSSEC verification code |
| 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-2022-38177
Memory leak in ECDSA DNSSEC verification code - CVE-2022-2881
Buffer overread in statistics channel code - 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
V. Comments for CVE-2022-2906
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