Vulnerability Details CVE-2021-38195
An issue was discovered in the libsecp256k1 crate before 0.5.0 for Rust. It can verify an invalid signature because it allows the R or S parameter to be larger than the curve order, aka an overflow.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 39.1%
CVSS Severity
CVSS v3 Score 9.8
CVSS v2 Score 7.5
References
- https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/libsecp256k1/RUSTSEC-2021-0076.md
- https://rustsec.org/advisories/RUSTSEC-2021-0076.html
- https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/libsecp256k1/RUSTSEC-2021-0076.md
- https://rustsec.org/advisories/RUSTSEC-2021-0076.html
Products affected by CVE-2021-38195
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cpe:2.3:a:parity:libsecp256k1:-
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cpe:2.3:a:parity:libsecp256k1:0.1.0
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cpe:2.3:a:parity:libsecp256k1:0.1.10
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cpe:2.3:a:parity:libsecp256k1:0.1.11
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cpe:2.3:a:parity:libsecp256k1:0.1.12
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cpe:2.3:a:parity:libsecp256k1:0.1.13
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cpe:2.3:a:parity:libsecp256k1:0.1.14
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cpe:2.3:a:parity:libsecp256k1:0.1.15
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cpe:2.3:a:parity:libsecp256k1:0.1.2
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cpe:2.3:a:parity:libsecp256k1:0.1.3
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cpe:2.3:a:parity:libsecp256k1:0.1.4
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cpe:2.3:a:parity:libsecp256k1:0.1.5
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cpe:2.3:a:parity:libsecp256k1:0.1.6
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cpe:2.3:a:parity:libsecp256k1:0.1.7
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cpe:2.3:a:parity:libsecp256k1:0.1.8
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cpe:2.3:a:parity:libsecp256k1:0.1.9
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cpe:2.3:a:parity:libsecp256k1:0.2.0
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cpe:2.3:a:parity:libsecp256k1:0.2.1
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cpe:2.3:a:parity:libsecp256k1:0.2.2
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cpe:2.3:a:parity:libsecp256k1:0.3.0
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cpe:2.3:a:parity:libsecp256k1:0.3.1
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cpe:2.3:a:parity:libsecp256k1:0.3.2
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cpe:2.3:a:parity:libsecp256k1:0.3.3
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cpe:2.3:a:parity:libsecp256k1:0.3.4
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cpe:2.3:a:parity:libsecp256k1:0.3.5