RUSTSEC-2021-0016

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Source

https://rustsec.org/advisories/RUSTSEC-2021-0016

Import Source

https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2021-0016.json

JSON Data

https://api.osv.dev/v1/vulns/RUSTSEC-2021-0016

Aliases

Published

2021-01-26T12:00:00Z

Modified

2023-11-08T04:05:22.896074Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator

Summary

`IoReader::read()`: user-provided `Read` on uninitialized buffer may cause UB

Details

Affected versions of this crate passes an uninitialized buffer to a user-provided Read implementation.

Arbitrary Read implementations can read from the uninitialized buffer (memory exposure) and also can return incorrect number of bytes written to the buffer. Reading from uninitialized memory produces undefined values that can quickly invoke undefined behavior.

The flaw was fixed in commit 599313b by zero-initializing the buffer (via self.buf.resize(len, 0)) before passing it to Read.

Database specific

{
    "license": "CC0-1.0"
}

References

Affected packages

crates.io / ms3d

Package

Name: ms3d; View open source insights on deps.dev
Purl: pkg:cargo/ms3d

Affected ranges

Type: SEMVER
Events: Introduced

0.0.0-0

Fixed

0.1.3

Ecosystem specific

{
    "affected_functions": null,
    "affects": {
        "os": [],
        "functions": [],
        "arch": []
    }
}

Database specific

{
    "cvss": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
    "informational": null,
    "categories": [
        "memory-exposure"
    ]
}