rustsec-2020-0017
Vulnerability from osv_rustsec
Published
2020-05-28 12:00
Modified
2023-06-13 13:10
Summary
Use after free in ArcIntern::drop
Details
ArcIntern::drop has a race condition where it can release memory
which is about to get another user. The new user will get a reference
to freed memory.
This was fixed by serializing access to an interned object while it is being deallocated.
Versions prior to 0.3.12 used stronger locking which avoided the problem.
Severity
8.1 (High)
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"database_specific": {
"categories": [
"memory-corruption"
],
"cvss": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"informational": null
},
"ecosystem_specific": {
"affected_functions": null,
"affects": {
"arch": [],
"functions": [
"internment::ArcIntern::drop"
],
"os": []
}
},
"package": {
"ecosystem": "crates.io",
"name": "internment",
"purl": "pkg:cargo/internment"
},
"ranges": [
{
"events": [
{
"introduced": "0.3.12"
},
{
"fixed": "0.4.0"
}
],
"type": "SEMVER"
}
],
"versions": []
}
],
"aliases": [
"CVE-2020-35874",
"GHSA-96w3-p368-4h8c"
],
"database_specific": {
"license": "CC0-1.0"
},
"details": "`ArcIntern::drop` has a race condition where it can release memory\nwhich is about to get another user. The new user will get a reference\nto freed memory.\n\nThis was fixed by serializing access to an interned object while it\nis being deallocated.\n\nVersions prior to 0.3.12 used stronger locking which avoided the problem.",
"id": "RUSTSEC-2020-0017",
"modified": "2023-06-13T13:10:24Z",
"published": "2020-05-28T12:00:00Z",
"references": [
{
"type": "PACKAGE",
"url": "https://crates.io/crates/internment"
},
{
"type": "ADVISORY",
"url": "https://rustsec.org/advisories/RUSTSEC-2020-0017.html"
},
{
"type": "REPORT",
"url": "https://github.com/droundy/internment/issues/11"
}
],
"related": [],
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Use after free in ArcIntern::drop"
}
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Sightings
| Author | Source | Type | Date |
|---|
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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