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GitHub Advisory DatabaseGHSA-7CQG-8449-RMFV

HistoryAug 25, 2021 - 9:01 p.m.

Observable Discrepancy in libsecp256k1-rs

2021-08-2521:01:27

CWE-203

CWE-362

GitHub Advisory Database

github.com

timing

vulnerability

scalar check_overflow

parity

libsecp256k1-rs

side-channel attack

information leakage

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

EPSS

0.002

Percentile

53.8%

JSON

A timing vulnerability in the Scalar::check_overflow function in Parity libsecp256k1-rs before 0.3.1 potentially allows an attacker to leak information via a side-channel attack.

Affected configurations

Vulners

Node

paritylibsecp256k1Range<0.3.1

VendorProductVersionCPE
paritylibsecp256k1*cpe:2.3:a:parity:libsecp256k1:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
parity	libsecp256k1	*	cpe:2.3:a:parity:libsecp256k1::::::::

References

github.com/advisories/GHSA-7cqg-8449-rmfv

github.com/paritytech/libsecp256k1/commit/11ba23a9766a5079918cd9f515bc100bc8164b50

nvd.nist.gov/vuln/detail/CVE-2019-20399

rustsec.org/advisories/RUSTSEC-2020-0156.html

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

EPSS

0.002

Percentile

53.8%

JSON

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