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CVE-2021-33560

Quick assessment

Affected
n/a n/a
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Libgcrypt是GNU计划开发（Gnu计划开发）的一个基于GnuPG代码的通用加密库。该库实现了各种加密算法，包括对称密码、哈希算法、公开密钥算法等。 Libgcrypt 在1.8.8和1.9之前存在安全漏洞，该漏洞源于缺乏指数盲法来解决针对mpi powm的侧信道攻击，而且窗口大小选择不当。

AI Predicted 5.9 Difficulty: Moderate EPSS 2.34% · P83

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2021-33560

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Libgcrypt before 1.8.8 and 1.9.x before 1.9.3 mishandles ElGamal encryption because it lacks exponent blinding to address a side-channel attack against mpi_powm, and the window size is not chosen appropriately. This, for example, affects use of ElGamal in OpenPGP.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Libgcrypt 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Libgcrypt是GNU计划开发（Gnu计划开发）的一个基于GnuPG代码的通用加密库。该库实现了各种加密算法，包括对称密码、哈希算法、公开密钥算法等。 Libgcrypt 在1.8.8和1.9之前存在安全漏洞，该漏洞源于缺乏指数盲法来解决针对mpi powm的侧信道攻击，而且窗口大小选择不当。
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-2021-33560

# POC Description Source Link Shenlong Link
1 Tool to check whether a PGP client is affected by CVE-2021-33560 https://github.com/IBM/PGP-client-checker-CVE-2021-33560 POC Details
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III. Intelligence Information for CVE-2021-33560

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Vendor Advisories for CVE-2021-33560 (5)

Mailing List Discussions for CVE-2021-33560 (3)

Other References for CVE-2021-33560 (3)

Same Patch Batch · n/a · 2021-06-08 · 30 CVEs total

CVE-2021-26472 10.0 CRITICAL Unauthenticated remote command execution with SYSTEM privileges in Vembu products
CVE-2021-26473 9.8 CRITICAL Unauthenticated arbitrary file upload and command execution in Vembu products
CVE-2021-26471 9.8 CRITICAL Unauthenticated remote command execution in Vembu products
CVE-2021-26474 8.6 HIGH UNAUTHENTICATED SERVER SIDE REQUEST FORGERY IN VEMBU PRODUCTS
CVE-2021-23392 5.3 MEDIUM Regular Expression Denial of Service (ReDoS)
CVE-2021-23215 Industrial Light and Magic OpenEXR 资源管理错误漏洞
CVE-2021-32106 ICEcoder 跨站脚本漏洞
CVE-2020-26516 Intland codeBeamer ALM 跨站请求伪造漏洞
CVE-2021-3564 Linux kernel 资源管理错误漏洞
CVE-2021-26945 Industrial Light and Magic OpenEXR 输入验证错误漏洞
CVE-2021-22116 RabbitMQ输入验证错误漏洞
CVE-2021-31738 Adiscon LogAnalyzer 跨站脚本漏洞
CVE-2021-23169 Industrial Light And Magic（lim） OpenEXR 缓冲区错误漏洞
CVE-2021-30357 Arch Linux安全漏洞
CVE-2021-26260 Industrial Light and Magic OpenEXR 资源管理错误漏洞
CVE-2021-31807 Squid 输入验证错误漏洞
CVE-2021-33571 Django 代码问题漏洞
CVE-2020-26517 Intland Software codeBeamer ALM 跨站脚本漏洞
CVE-2020-26515 Intland codeBeamer ALM 安全漏洞
CVE-2021-31342 Solid Edge SE 缓冲区错误漏洞

Showing top 20 of 30 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2021-33560

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