High
rust-rustls — security advisory
Rustls is a modern TLS library written in Rust. `rustls::ConnectionCommon::complete_io` could fall into an infinite loop based on network input. When using a blocking rustls server, if a client send a `close_notify` message immediately after `client_hello`, the server's `complete_io` will get in an infinite loop. This vulnerability is fixed in 0.23.5, 0.22.4, and 0.21.11.
- Products
- rust-rustls
- Affected versions
- 0.21.10-1, 0.21.6-3, 0.21.7-1, 0.21.9-1, 0.23.25+ds-1, 0.23.26+ds-1, 0.23.33+ds-3build2, 0.23.35+ds-1, 0.23.35+ds-1build1, 0.23.36+ds-1, 0.23.41+ds-1
- Fixed versions
- Not specified
- CVEs
- CVE-2024-32650
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:13 UTC · Revision 1
Source evidence
Rustls is a modern TLS library written in Rust. `rustls::ConnectionCommon::complete_io` could fall into an infinite loop based on network input. When using a blocking rustls server, if a client send a `close_notify` message immediately after `client_hello`, the server's `complete_io` will get in an infinite loop. This vulnerability is fixed in 0.23.5, 0.22.4, and 0.21.11.
osv:UBUNTU-CVE-2024-32650
rust-rustls
Fixed versions: Not specified
rust-rustls
Fixed versions: Not specified
rust-rustls
Fixed versions: Not specified
rust-rustls
Fixed versions: Not specified
Complete source record
{
"id": "64492eac0c05bfdac81775752c348d1cd1c5c835f6924ad00d6ce77acfc188cb",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2024-32650",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2024-32650",
"summary": "Rustls is a modern TLS library written in Rust. `rustls::ConnectionCommon::complete_io` could fall into an infinite loop based on network input. When using a blocking rustls server, if a client send a `close_notify` message immediately after `client_hello`, the server's `complete_io` will get in an infinite loop. This vulnerability is fixed in 0.23.5, 0.22.4, and 0.21.11.",
"evidence": "osv:UBUNTU-CVE-2024-32650",
"products": [
{
"name": {
"value": "rust-rustls",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.21.6-3",
"evidence": "/affected/0/versions"
},
{
"value": "0.21.7-1",
"evidence": "/affected/0/versions"
},
{
"value": "0.21.9-1",
"evidence": "/affected/0/versions"
},
{
"value": "0.21.10-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "rust-rustls",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.23.25+ds-1",
"evidence": "/affected/1/versions"
},
{
"value": "0.23.26+ds-1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "rust-rustls",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.23.36+ds-1",
"evidence": "/affected/2/versions"
},
{
"value": "0.23.41+ds-1",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "rust-rustls",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.23.26+ds-1",
"evidence": "/affected/3/versions"
},
{
"value": "0.23.33+ds-3build2",
"evidence": "/affected/3/versions"
},
{
"value": "0.23.35+ds-1",
"evidence": "/affected/3/versions"
},
{
"value": "0.23.35+ds-1build1",
"evidence": "/affected/3/versions"
},
{
"value": "0.23.36+ds-1",
"evidence": "/affected/3/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2024-32650",
"aliases": [
"UBUNTU-CVE-2024-32650"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "rust-rustls",
"purl": "pkg:deb/ubuntu/rust-rustls?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"0.21.6-3",
"0.21.7-1",
"0.21.9-1",
"0.21.10-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-32650.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "librust-rustls-dev",
"binary_version": "0.21.10-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "rust-rustls",
"purl": "pkg:deb/ubuntu/rust-rustls?arch=source&distro=questing",
"ecosystem": "Ubuntu:25.10"
},
"versions": [
"0.23.25+ds-1",
"0.23.26+ds-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-32650.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "librust-rustls-dev",
"binary_version": "0.23.26+ds-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "rust-rustls",
"purl": "pkg:deb/ubuntu/rust-rustls?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"0.23.36+ds-1",
"0.23.41+ds-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-32650.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "librust-rustls-dev",
"binary_version": "0.23.41+ds-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "rust-rustls",
"purl": "pkg:deb/ubuntu/rust-rustls?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"0.23.26+ds-1",
"0.23.33+ds-3build2",
"0.23.35+ds-1",
"0.23.35+ds-1build1",
"0.23.36+ds-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-32650.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "librust-rustls-dev",
"binary_version": "0.23.36+ds-1"
}
]
}
}
],
"modified": "2026-10-17T12:56:44.938483822Z",
"provider": "osv",
"upstream": [
"CVE-2024-32650"
],
"references": [
"https://ubuntu.com/security/CVE-2024-32650",
"https://www.cve.org/CVERecord?id=CVE-2024-32650",
"https://github.com/rustls/rustls/security/advisories/GHSA-6g7w-8wpp-frhj"
]
},
"related_cves": [
{
"value": "CVE-2024-32650",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 356136,
"published_at": "2024-04-19T16:15:00+00:00"
}