CVE-2020-35880 json
Unsoundness in bigint
published 6y ago modified 4mo ago also GHSA-wgx2-6432-j3fw , RUSTSEC-2020-0025 , EUVD-2021-1916
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.5%
- EPSS 1.5% chance of exploitation in 30 days, percentile 74%
- public exploits
- 0
- none known
Summary
An issue was discovered in the bigint crate through 2020-05-07 for Rust. It allows a soundness violation.
Patch / fix
Is CVE-2020-35880 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
1.53% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| OSV | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| crates.io | bigint | <=4.4.3 >=0.0.0-0 |
no fix listed |
Classification
- Weakness
-
- CWE-704 Incorrect Type Conversion or Cast
References
-
rustsec.org
/advisories/RUSTSEC-2020-0025.html
web, patch, third-party-advisory, advisory
-
github.com
/paritytech/bigint/commit/7e71521a61b009afc94c91135353102658550d42
web
-
nvd.nist.gov
/vuln/detail/CVE-2020-35880
advisory
-
github.com
/rustsec/advisory-db/pull/290
web
-
github.com
/paritytech/bigint
package
-
crates.io
/crates/bigint
package
Sources
- CVE List CVE-2020-35880
- GitHub Advisory GHSA-wgx2-6432-j3fw
- NVD CVE-2020-35880
- OSV RUSTSEC-2020-0025
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