RUSTSEC-2020-0124 (CVE-2020-36444)
Vulnerability from osv_rustsec – Published: 2020-12-08 12:00 – Updated: 2023-06-13 13:10 – Source websiteAffected versions of this crate implement Send/Sync for ArcGuard<RC, T> with no trait bounds on RC. This allows users to send RC: !Send to other threads and also allows users to concurrently access Rc: !Sync from multiple threads.
This can result in memory corruption from data race or other undefined behavior caused by sending T: !Send to other threads (e.g. dropping MutexGuard<T> in another thread that didn't lock its mutex).
| URL | Type | |
|---|---|---|
{
"affected": [
{
"database_specific": {
"categories": [
"memory-corruption",
"thread-safety"
],
"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": [],
"os": []
}
},
"package": {
"ecosystem": "crates.io",
"name": "async-coap",
"purl": "pkg:cargo/async-coap"
},
"ranges": [
{
"events": [
{
"introduced": "0.0.0-0"
}
],
"type": "SEMVER"
}
],
"versions": []
}
],
"aliases": [
"CVE-2020-36444",
"GHSA-9j8q-m9x5-9g6j"
],
"database_specific": {
"license": "CC0-1.0"
},
"details": "Affected versions of this crate implement Send/Sync for `ArcGuard\u003cRC, T\u003e` with no trait bounds on `RC`. This allows users to send `RC: !Send` to other threads and also allows users to concurrently access `Rc: !Sync` from multiple threads.\n\nThis can result in memory corruption from data race or other undefined behavior caused by sending `T: !Send` to other threads (e.g. dropping `MutexGuard\u003cT\u003e` in another thread that didn\u0027t lock its mutex).",
"id": "RUSTSEC-2020-0124",
"modified": "2023-06-13T13:10:24Z",
"published": "2020-12-08T12:00:00Z",
"references": [
{
"type": "PACKAGE",
"url": "https://crates.io/crates/async-coap"
},
{
"type": "ADVISORY",
"url": "https://rustsec.org/advisories/RUSTSEC-2020-0124.html"
},
{
"type": "REPORT",
"url": "https://github.com/google/rust-async-coap/issues/33"
}
],
"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": "ArcGuard\u0027s Send and Sync should have bounds on RC"
}
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
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