RUSTSEC-2020-0148 (CVE-2020-36466)
Vulnerability from osv_rustsec – Published: 2020-12-10 12:00 – Updated: 2023-06-13 13:10 – Source website
VLAI
Summary
Multiple soundness issues in `Ptr`
Details
Affected versions of this crate have the following issues:
-
PtrimplementsSendandSyncfor all types, this can lead to data races by sending non-thread safe types across threads. -
Ptr::getviolates mutable alias rules by returning multiple mutable references to the same object. -
Ptr::writeuses non-atomic writes to the underlying pointer. This means that when used across threads it can lead to data races.
Severity
5.9 (Medium)
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"database_specific": {
"categories": [
"memory-corruption"
],
"cvss": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"informational": null
},
"ecosystem_specific": {
"affected_functions": null,
"affects": {
"arch": [],
"functions": [],
"os": []
}
},
"package": {
"ecosystem": "crates.io",
"name": "cgc",
"purl": "pkg:cargo/cgc"
},
"ranges": [
{
"events": [
{
"introduced": "0.0.0-0"
}
],
"type": "SEMVER"
}
],
"versions": []
}
],
"aliases": [
"CVE-2020-36466",
"CVE-2020-36467",
"CVE-2020-36468",
"GHSA-f3mq-99jr-ww4r",
"GHSA-f9xr-3m55-5q2v",
"GHSA-pwhf-7427-9vv2"
],
"database_specific": {
"license": "CC0-1.0"
},
"details": "Affected versions of this crate have the following issues:\n\n1. `Ptr` implements `Send` and `Sync` for all types, this can lead to data\n races by sending non-thread safe types across threads.\n\n2. `Ptr::get` violates mutable alias rules by returning multiple mutable\n references to the same object.\n\n3. `Ptr::write` uses non-atomic writes to the underlying pointer. This means\n that when used across threads it can lead to data races.",
"id": "RUSTSEC-2020-0148",
"modified": "2023-06-13T13:10:24Z",
"published": "2020-12-10T12:00:00Z",
"references": [
{
"type": "PACKAGE",
"url": "https://crates.io/crates/cgc"
},
{
"type": "ADVISORY",
"url": "https://rustsec.org/advisories/RUSTSEC-2020-0148.html"
},
{
"type": "REPORT",
"url": "https://github.com/playXE/cgc/issues/5"
}
],
"related": [],
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "Multiple soundness issues in `Ptr`"
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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