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CVE-2023-33242— Lindell17 TSS Abort Mishandling

Quick assessment

Affected
Lindell TSS Implementations Wallet
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.

tss-lib是IO FinNet开源的一个基于 Gennaro 和 Goldfeder 2020[1] 和 EdDSA (Edwards Curve Digital Signature Algorithm) 的多方 {t,n}- 阈值 ECDSA（椭圆曲线数字签名算法）的实现。 Lindell17 TSS 存在安全漏洞，该漏洞源于允许攻击者使用 Lindell17 TSS 协议从任何钱包中提取完整私钥。

CVSS 9.6 · Critical EPSS 1.51% · P74

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System
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I. Basic Information for CVE-2023-33242

Vulnerability Information
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Vulnerability Title
Lindell17 TSS Abort Mishandling
Source: CVE Program / CVE List V5
Vulnerability Description
Crypto wallets implementing the Lindell17 TSS protocol might allow an attacker to extract the full ECDSA private key by exfiltrating a single bit in every signature attempt (256 in total) because of not adhering to the paper's security proof's assumption regarding handling aborts after a failed signature.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Lindell17 TSS 注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
tss-lib是IO FinNet开源的一个基于 Gennaro 和 Goldfeder 2020[1] 和 EdDSA (Edwards Curve Digital Signature Algorithm) 的多方 {t,n}- 阈值 ECDSA（椭圆曲线数字签名算法）的实现。 Lindell17 TSS 存在安全漏洞，该漏洞源于允许攻击者使用 Lindell17 TSS 协议从任何钱包中提取完整私钥。
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
Lindell TSS Implementations Wallet 17 -

II. Public POCs for CVE-2023-33242

# POC Description Source Link Shenlong Link
1 CVE-2023-33242 PoC https://github.com/d0rb/CVE-2023-33242 POC Details
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Qwen3.6-35B-A3B · 6201 chars
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III. Intelligence Information for CVE-2023-33242

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Security Blog Posts for CVE-2023-33242 (1)

Other References for CVE-2023-33242 (3)

IV. Related Vulnerabilities

Same product: Wallet

V. Comments for CVE-2023-33242

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