rustsec-2020-0043
Vulnerability from osv_rustsec
Published
2020-09-25 12:00
Modified
2023-06-13 13:10
Summary
Insufficient size checks in outgoing buffer in ws allows remote attacker to run the process out of memory
Details
Affected versions of this crate did not properly check and cap the growth of the outgoing buffer.
This allows a remote attacker to take down the process by growing the buffer of their (single) connection until the process runs out of memory it can allocate and is killed.
The flaw was corrected in the parity-ws fork (>=0.10.0) by disconnecting a client when the buffer runs full.
{
"affected": [
{
"database_specific": {
"categories": [
"denial-of-service"
],
"cvss": "CVSS:3.1/AV:N/AC:L/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": "ws",
"purl": "pkg:cargo/ws"
},
"ranges": [
{
"events": [
{
"introduced": "0.0.0-0"
}
],
"type": "SEMVER"
}
],
"versions": []
}
],
"aliases": [
"CVE-2020-35896",
"GHSA-rh7x-ppxx-p34c"
],
"database_specific": {
"license": "CC0-1.0"
},
"details": "Affected versions of this crate did not properly check and cap the growth of the outgoing buffer.\n\nThis allows a remote attacker to take down the process by growing the buffer of their (single) connection until the process runs out of memory it can allocate and is killed.\n\nThe flaw was corrected in the [`parity-ws` fork](https://crates.io/crates/parity-ws) (\u003e=0.10.0) by [disconnecting a client when the buffer runs full](https://github.com/housleyjk/ws-rs/pull/328).",
"id": "RUSTSEC-2020-0043",
"modified": "2023-06-13T13:10:24Z",
"published": "2020-09-25T12:00:00Z",
"references": [
{
"type": "PACKAGE",
"url": "https://crates.io/crates/ws"
},
{
"type": "ADVISORY",
"url": "https://rustsec.org/advisories/RUSTSEC-2020-0043.html"
},
{
"type": "REPORT",
"url": "https://github.com/housleyjk/ws-rs/issues/291"
}
],
"related": [],
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "Insufficient size checks in outgoing buffer in ws allows remote attacker to run the process out of memory"
}
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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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