Ecosyste.ms: Advisories

Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLWg3cWgtM2g2Zi13Nzlw

Unexpected panic in multihash

In versions prior 0.11.3 it's possible to make from_slice panic by feeding it certain malformed input. It's never documented that from_slice (and from_bytes which wraps it) can panic, and its' return type (Result<Self, DecodeError>) suggests otherwise. In practice, from_slice/from_bytes is frequently used in networking code and is being called with unsanitized data from untrusted sources. This can allow attackers to cause DoS by causing an unexpected panic in the network client's code..

Permalink: https://github.com/advisories/GHSA-h7qh-3h6f-w79p
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLWg3cWgtM2g2Zi13Nzlw
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: over 2 years ago
Updated: 11 months ago

CVSS Score: 7.5
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Identifiers: GHSA-h7qh-3h6f-w79p, CVE-2020-35909
References:

• https://nvd.nist.gov/vuln/detail/CVE-2020-35909
• https://github.com/multiformats/rust-multihash/pull/72
• https://rustsec.org/advisories/RUSTSEC-2020-0068.html
• https://github.com/advisories/GHSA-h7qh-3h6f-w79p

Repository: https://github.com/multiformats/rust-multihash
Blast Radius: 25.9

Affected Packages