High
golang-github-lucas-clemente-quic-go — security advisory
quic-go is an implementation of the QUIC protocol in Go. Starting in version 0.37.0 and prior to version 0.37.3, by serializing an ACK frame after the CRYTPO that allows a node to complete the handshake, a remote node could trigger a nil pointer dereference (leading to a panic) when the node attempted to drop the Handshake packet number space. An attacker can bring down a quic-go node with very minimal effort. Completing the QUIC handshake only requires sending and receiving a few packets. Version 0.37.3 contains a patch. Versions before 0.37.0 are not affected.
- Products
- golang-github-lucas-clemente-quic-go
- Affected versions
- 0.18.0-3, 0.24.0-1, 0.25.0-1, 0.37.4-1, 0.38.2-1, 0.50.0-1, 0.50.1-2, 0.59.0-2
- Fixed versions
- Not specified
- CVEs
- CVE-2023-46239
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:11 UTC · Revision 1
Source evidence
quic-go is an implementation of the QUIC protocol in Go. Starting in version 0.37.0 and prior to version 0.37.3, by serializing an ACK frame after the CRYTPO that allows a node to complete the handshake, a remote node could trigger a nil pointer dereference (leading to a panic) when the node attempted to drop the Handshake packet number space. An attacker can bring down a quic-go node with very minimal effort. Completing the QUIC handshake only requires sending and receiving a few packets. Version 0.37.3 contains a patch. Versions before 0.37.0 are not affected.
osv:UBUNTU-CVE-2023-46239
golang-github-lucas-clemente-quic-go
Fixed versions: Not specified
golang-github-lucas-clemente-quic-go
Fixed versions: Not specified
golang-github-lucas-clemente-quic-go
Fixed versions: Not specified
golang-github-lucas-clemente-quic-go
Fixed versions: Not specified
golang-github-lucas-clemente-quic-go
Fixed versions: Not specified
Complete source record
{
"id": "d9678e8316808fd9d877c359a6e0d6ee3fd77e4222ad81c5a5aa1764da805361",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2023-46239",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2023-46239",
"summary": "quic-go is an implementation of the QUIC protocol in Go. Starting in version 0.37.0 and prior to version 0.37.3, by serializing an ACK frame after the CRYTPO that allows a node to complete the handshake, a remote node could trigger a nil pointer dereference (leading to a panic) when the node attempted to drop the Handshake packet number space. An attacker can bring down a quic-go node with very minimal effort. Completing the QUIC handshake only requires sending and receiving a few packets. Version 0.37.3 contains a patch. Versions before 0.37.0 are not affected.",
"evidence": "osv:UBUNTU-CVE-2023-46239",
"products": [
{
"name": {
"value": "golang-github-lucas-clemente-quic-go",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.18.0-3",
"evidence": "/affected/0/versions"
},
{
"value": "0.24.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "0.25.0-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "golang-github-lucas-clemente-quic-go",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.37.4-1",
"evidence": "/affected/1/versions"
},
{
"value": "0.38.2-1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "golang-github-lucas-clemente-quic-go",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.50.0-1",
"evidence": "/affected/2/versions"
},
{
"value": "0.50.1-2",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "golang-github-lucas-clemente-quic-go",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.59.0-2",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "golang-github-lucas-clemente-quic-go",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.50.1-2",
"evidence": "/affected/4/versions"
},
{
"value": "0.59.0-2",
"evidence": "/affected/4/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2023-46239",
"aliases": [
"UBUNTU-CVE-2023-46239"
],
"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": "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": "golang-github-lucas-clemente-quic-go",
"purl": "pkg:deb/ubuntu/golang-github-lucas-clemente-quic-go?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"0.18.0-3",
"0.24.0-1",
"0.25.0-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-46239.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "golang-github-lucas-clemente-quic-go-dev",
"binary_version": "0.25.0-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "golang-github-lucas-clemente-quic-go",
"purl": "pkg:deb/ubuntu/golang-github-lucas-clemente-quic-go?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"0.37.4-1",
"0.38.2-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-46239.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "golang-github-lucas-clemente-quic-go-dev",
"binary_version": "0.38.2-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "golang-github-lucas-clemente-quic-go",
"purl": "pkg:deb/ubuntu/golang-github-lucas-clemente-quic-go?arch=source&distro=questing",
"ecosystem": "Ubuntu:25.10"
},
"versions": [
"0.50.0-1",
"0.50.1-2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-46239.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "golang-github-lucas-clemente-quic-go-dev",
"binary_version": "0.50.1-2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "golang-github-lucas-clemente-quic-go",
"purl": "pkg:deb/ubuntu/golang-github-lucas-clemente-quic-go?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"0.59.0-2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-46239.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "golang-github-lucas-clemente-quic-go-dev",
"binary_version": "0.59.0-2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "golang-github-lucas-clemente-quic-go",
"purl": "pkg:deb/ubuntu/golang-github-lucas-clemente-quic-go?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"0.50.1-2",
"0.59.0-2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-46239.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "golang-github-lucas-clemente-quic-go-dev",
"binary_version": "0.59.0-2"
}
]
}
}
],
"modified": "2026-10-17T12:56:42.465439765Z",
"provider": "osv",
"upstream": [
"CVE-2023-46239"
],
"references": [
"https://ubuntu.com/security/CVE-2023-46239",
"https://github.com/quic-go/quic-go/security/advisories/GHSA-3q6m-v84f-6p9h",
"https://github.com/quic-go/quic-go/commit/b6a4725b60f1fe04e8f1ddcc3114e290fcea1617",
"https://www.cve.org/CVERecord?id=CVE-2023-46239"
]
},
"related_cves": [
{
"value": "CVE-2023-46239",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 356005,
"published_at": "2023-10-31T16:15:00+00:00"
}