RUSTSEC-2019-0008

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Source

https://rustsec.org/advisories/RUSTSEC-2019-0008

Import Source

https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2019-0008.json

JSON Data

https://api.osv.dev/v1/vulns/RUSTSEC-2019-0008

Aliases

Published

2019-06-24T12:00:00Z

Modified

2023-11-08T04:01:14.101340Z

Severity

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

Summary

Flaw in string parsing can lead to crashes due to invalid memory access.

Details

The affected version of this crate did not guard against accessing memory beyond the range of its input data. A pointer cast to read the data into a 256-bit register could lead to a segmentation fault when the end plus the 32 bytes (256 bit) read would overlap into the next page during string parsing.

page   |  ...  page 1  ...  | ... page 2  ... |
data   | x[n * 32 byte]xx__ |                 |
access | ..][ 32 byte ]     |                 |
segflt |               [ 32 | byte ]          |

This allows an attacker to eventually crash a service.

The flaw was corrected by using a padding buffer for the last read from the input. So that we are we never read over the boundary of the input data.

Database specific

{
    "license": "CC0-1.0"
}

References

Affected packages

crates.io / simd-json

Package

Name: simd-json; View open source insights on deps.dev
Purl: pkg:cargo/simd-json

Affected ranges

Type: SEMVER
Events: Introduced

0.1.14-0

Fixed

0.1.15

Ecosystem specific

{
    "affected_functions": null,
    "affects": {
        "os": [],
        "functions": [],
        "arch": [
            "x86",
            "x86_64"
        ]
    }
}

Database specific

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