What is the severity of CVE-2023-26557?

The severity of CVE-2023-26557 is categorized as high due to the potential for sensitive data leakage through a timing side-channel attack.

How do I fix CVE-2023-26557?

To fix CVE-2023-26557, update the tss-lib library to version 2.0.0 or later.

Which versions are affected by CVE-2023-26557?

CVE-2023-26557 affects versions of tss-lib before 2.0.0.

What type of attack does CVE-2023-26557 involve?

CVE-2023-26557 involves a timing side-channel attack that can leak the lambda value of a private key.

Which software packages are impacted by CVE-2023-26557?

CVE-2023-26557 impacts the tss-lib library from both 'github.com/binance-chain' and 'github.com/bnb-chain'.

Vulnerability/
CVE-2023-26557

high

7.5

CWE

203

21/4/2023

5/2/2025

CVE-2023-26557

First published: Fri Apr 21 2023(Updated: )

io.finnet tss-lib before 2.0.0 can leak the lambda value of a private key via a timing side-channel attack because it relies on Go big.Int, which is not constant time for Cmp, modular exponentiation, or modular inverse. An example leak is in crypto/paillier/paillier.go. (bnb-chain/tss-lib and thorchain/tss are also affected.)

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
go/github.com/binance-chain/tss-lib	<1.3.6-0.20230324145555-bb6fb30bd3eb	1.3.6-0.20230324145555-bb6fb30bd3eb
go/github.com/bnb-chain/tss-lib	<1.3.6-0.20230324145555-bb6fb30bd3eb	1.3.6-0.20230324145555-bb6fb30bd3eb
Binance TSS-lib	<2.0.0

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2023-26557?
The severity of CVE-2023-26557 is categorized as high due to the potential for sensitive data leakage through a timing side-channel attack.
How do I fix CVE-2023-26557?
To fix CVE-2023-26557, update the tss-lib library to version 2.0.0 or later.
Which versions are affected by CVE-2023-26557?
CVE-2023-26557 affects versions of tss-lib before 2.0.0.
What type of attack does CVE-2023-26557 involve?
CVE-2023-26557 involves a timing side-channel attack that can leak the lambda value of a private key.
Which software packages are impacted by CVE-2023-26557?
CVE-2023-26557 impacts the tss-lib library from both 'github.com/binance-chain' and 'github.com/bnb-chain'.

agent/type
agent/author
agent/weakness
agent/first-publish-date
agent/description
collector/mitre-cve
source/MITRE
collector/github-advisory-latest
source/GitHub
alias/GHSA-mjqv-xhgm-gx8c
alias/CVE-2023-26557
agent/software-canonical-lookup
agent/last-modified-date
agent/references
agent/severity
agent/softwarecombine
agent/source
agent/event
collector/github-advisory
agent/tags
collector/nvd-cve
source/NVD
agent/software-canonical-lookup-request
collector/nvd-api
collector/nvd-index
package-manager/go
vendor/iofinnet
canonical/binance tss-lib

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Frequently Asked Questions

What is the severity of CVE-2023-26557?
The severity of CVE-2023-26557 is categorized as high due to the potential for sensitive data leakage through a timing side-channel attack.
How do I fix CVE-2023-26557?
To fix CVE-2023-26557, update the tss-lib library to version 2.0.0 or later.
Which versions are affected by CVE-2023-26557?
CVE-2023-26557 affects versions of tss-lib before 2.0.0.
What type of attack does CVE-2023-26557 involve?
CVE-2023-26557 involves a timing side-channel attack that can leak the lambda value of a private key.
Which software packages are impacted by CVE-2023-26557?
CVE-2023-26557 impacts the tss-lib library from both 'github.com/binance-chain' and 'github.com/bnb-chain'.