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CVE-2021-3505

Quick assessment

Affected
n/a libtpms
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.

Archlinux libtpms是 Archlinux开源的一个应用程序。提供可信任平台模块（TPM 1.2和TPM 2.0）的软件仿真的库。 libtpms 0.8.0之前版本存在安全特征问题漏洞，该漏洞源于TCG规范中的一个错误，RsaAdjustPrimeCandidate()中的密钥创建算法在质数检查之前被调用。

AI Predicted 6.5 Difficulty: Moderate EPSS 0.40% · P32

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle
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I. Basic Information for CVE-2021-3505

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in libtpms in versions before 0.8.0. The TPM 2 implementation returns 2048 bit keys with ~1984 bit strength due to a bug in the TCG specification. The bug is in the key creation algorithm in RsaAdjustPrimeCandidate(), which is called before the prime number check. The highest threat from this vulnerability is to data confidentiality.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
信息熵不充分
Source: CVE Program / CVE List V5
Vulnerability Title
Archlinux libtpms 安全特征问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Archlinux libtpms是 Archlinux开源的一个应用程序。提供可信任平台模块（TPM 1.2和TPM 2.0）的软件仿真的库。 libtpms 0.8.0之前版本存在安全特征问题漏洞，该漏洞源于TCG规范中的一个错误，RsaAdjustPrimeCandidate()中的密钥创建算法在质数检查之前被调用。
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
- libtpms libtpms 0.8.0 -

II. Public POCs for CVE-2021-3505

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III. Intelligence Information for CVE-2021-3505

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Vendor Advisories for CVE-2021-3505 (1)

Mailing List Discussions for CVE-2021-3505 (1)

Other References for CVE-2021-3505 (1)

Same Patch Batch · n/a · 2021-04-19 · 32 CVEs total

CVE-2021-31255 GPAC 缓冲区错误漏洞
CVE-2021-29399 XMB 跨站脚本漏洞
CVE-2021-21981 VMware NSX-T 权限许可和访问控制问题漏洞
CVE-2021-27027 Autodesk FBX Review 缓冲区错误漏洞
CVE-2021-27028 Autodesk FBX Review 缓冲区错误漏洞
CVE-2021-27029 Autodesk FBX Review 代码问题漏洞
CVE-2021-27030 Autodesk FBX Review 路径遍历漏洞
CVE-2021-27031 Autodesk FBX Review 资源管理错误漏洞
CVE-2020-28141 Online Discussion Forum 跨站脚本漏洞
CVE-2021-31262 GPAC 代码问题漏洞
CVE-2021-31261 GPAC 缓冲区错误漏洞
CVE-2021-31260 GPAC 代码问题漏洞
CVE-2021-31259 GPAC 代码问题漏洞
CVE-2021-31258 GPAC 代码问题漏洞
CVE-2021-31257 GPAC 代码问题漏洞
CVE-2021-31256 GPAC 缓冲区错误漏洞
CVE-2021-20208 SUSE Linux Enterprise Server 安全漏洞
CVE-2021-31254 GPAC 缓冲区错误漏洞
CVE-2021-30199 GPAC 代码问题漏洞
CVE-2021-30022 GPAC 输入验证错误漏洞

Showing top 20 of 32 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: libtpms
Same vendor: n/a
Same weakness: CWE-331

V. Comments for CVE-2021-3505

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