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CVE-2023-26556

Quick assessment

Affected
n/a n/a
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.

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。 tss-lib 2.0.0之前版本存在安全漏洞，该漏洞源于可以通过定时侧信道攻击泄露密钥。

AI Predicted 5.9 Difficulty: Hard EPSS 0.86% · P57

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2023-26556

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
io.finnet tss-lib before 2.0.0 can leak a secret key via a timing side-channel attack because it relies on the scalar-multiplication implementation in Go crypto/elliptic, which is not constant time (there is an if statement in a loop). One leak is in ecdsa/keygen/round_2.go. (bnb-chain/tss-lib and thorchain/tss are also affected.)
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
tss-lib 安全漏洞
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。 tss-lib 2.0.0之前版本存在安全漏洞，该漏洞源于可以通过定时侧信道攻击泄露密钥。
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
- n/a n/a -

II. Public POCs for CVE-2023-26556

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III. Intelligence Information for CVE-2023-26556

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Security Blog Posts for CVE-2023-26556 (1)

Other References for CVE-2023-26556 (3)

Same Patch Batch · n/a · 2023-04-21 · 23 CVEs total

CVE-2023-29910 H3C Magic R200 缓冲区错误漏洞
CVE-2021-33589 Ribose RNP 安全漏洞
CVE-2023-26100 Progress Flowmon 跨站脚本漏洞
CVE-2023-26101 Progress Flowmon 路径遍历漏洞
CVE-2022-48150 Shopware 跨站脚本漏洞
CVE-2023-29575 Bento4 安全漏洞
CVE-2023-29905 H3C Magic R200 缓冲区错误漏洞
CVE-2023-29906 H3C Magic R200 缓冲区错误漏洞
CVE-2023-29907 H3C Magic R200 缓冲区错误漏洞
CVE-2023-29908 H3C Magic R200 缓冲区错误漏洞
CVE-2023-29909 H3C Magic R200 缓冲区错误漏洞
CVE-2023-29924 PowerJob 安全漏洞
CVE-2023-29911 H3C Magic R200 缓冲区错误漏洞
CVE-2023-29912 H3C Magic R200 缓冲区错误漏洞
CVE-2023-29913 H3C Magic R200 缓冲区错误漏洞
CVE-2023-29914 H3C Magic R200 缓冲区错误漏洞
CVE-2023-29915 H3C Magic R200 缓冲区错误漏洞
CVE-2023-29916 H3C Magic R200 缓冲区错误漏洞
CVE-2023-29917 H3C Magic R200 缓冲区错误漏洞
CVE-2022-47930 tss-lib 安全漏洞

Showing top 20 of 23 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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

V. Comments for CVE-2023-26556

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