RUSTSEC-2021-0017

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Source
https://rustsec.org/advisories/RUSTSEC-2021-0017
Import Source
https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2021-0017.json
JSON Data
https://api.osv.dev/v1/vulns/RUSTSEC-2021-0017
Aliases
Published
2021-01-30T12:00:00Z
Modified
2023-11-08T04:05:22.958536Z
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
`Read` on uninitialized buffer may cause UB (`impl Walue for Vec<u8>`)
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.

This flaw was fixed in commit 8026286 by zero-initializing the buffer before handing to a user-provided Read.

Database specific 
{
    "license": "CC0-1.0"
}
References

Affected packages

crates.io / postscript

Package

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

Affected ranges

Type
SEMVER
Events
Introduced
0.0.0-0
Fixed
0.14.0

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"
    ]
}