CVE-2021-43398
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I. Basic Information for CVE-2021-43398
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
Crypto++ (aka Cryptopp) 8.6.0 and earlier contains a timing leakage in MakePublicKey(). There is a clear correlation between execution time and private key length, which may cause disclosure of the length information of the private key. This might allow attackers to conduct timing attacks. NOTE: this report is disputed by the vendor and multiple third parties. The execution-time differences are intentional. A user may make a choice of a longer key as a tradeoff between strength and performance. In making this choice, the amount of information leaked to an adversary is of infinitesimal value
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Crypto++ 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Crypto++是一款C++加密方法类库 Crypto++(又名Cryptopp) 8.6.0及更早版本存在安全漏洞，该漏洞源于软件在MakePublicKey()中包含一个计时泄漏。私钥执行时间与私钥长度存在明显的相关性，可能导致私钥长度信息的泄露。这可能允许攻击者可利用该漏洞进行计时攻击。
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 |
|---|---|---|---|---|
| - | n/a | n/a | - |
II. Public POCs for CVE-2021-43398
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://cryptopp.comx_refsource_MISC
- https://github.com/weidai11/cryptopp/issues/1080x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-43398
Same Patch Batch · n/a · 2021-11-04 · 12 CVEs total
| CVE-2021-43400 | BlueZ 资源管理错误漏洞 | |
| CVE-2020-25367 | D-Link DIR-823G 命令注入漏洞 | |
| CVE-2020-25366 | D-Link DIR-823G 安全漏洞 | |
| CVE-2020-25368 | D-Link DIR-823G 命令注入漏洞 | |
| CVE-2021-42624 | Miniftpd 安全漏洞 | |
| CVE-2021-43281 | MyBB 代码注入漏洞 | |
| CVE-2021-43293 | Sonatype Nexus Repository 代码问题漏洞 | |
| CVE-2021-43389 | Linux kernel 缓冲区错误漏洞 | |
| CVE-2020-21139 | EC Cloud E-Commerce System 跨站请求伪造漏洞 | |
| CVE-2021-43396 | GNU C Library 安全漏洞 | |
| CVE-2021-42057 | obsidian-dataview 代码注入漏洞 |
IV. Related Vulnerabilities
Same vendor: n/a
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V. Comments for CVE-2021-43398
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