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cve[email protected]CVE-2023-26556
HistoryApr 21, 2023 - 6:15 p.m.

CVE-2023-26556

2023-04-2118:15:07
CWE-203
web.nvd.nist.gov
28
cve-2023-26556
information security
secret key leak
timing side-channel attack
io.finnet tss-lib

9.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

9 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

46.6%

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.)

Affected configurations

NVD
Node
iofinnettss-libRange<2.0.0

9.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

9 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

46.6%

Related for CVE-2023-26556