High
Security advisory
A peer could send empty handshake fragments containing only padding which would be kept in memory until a full handshake was received, resulting in memory exhaustion. This issue affects versions v2019.01.28.00 and above of fizz, until v2019.08.05.00.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2019-11924
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:28 UTC · Revision 1
Source evidence
A peer could send empty handshake fragments containing only padding which would be kept in memory until a full handshake was received, resulting in memory exhaustion. This issue affects versions v2019.01.28.00 and above of fizz, until v2019.08.05.00.
osv:CVE-2019-11924
Complete source record
{
"id": "8c53e7aa426604ccb0b9deecaba9d33b615c73cc099cd6da2adb940fffb0064b",
"url": "https://osv.dev/vulnerability/CVE-2019-11924",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2019-11924",
"summary": "A peer could send empty handshake fragments containing only padding which would be kept in memory until a full handshake was received, resulting in memory exhaustion. This issue affects versions v2019.01.28.00 and above of fizz, until v2019.08.05.00.",
"evidence": "osv:CVE-2019-11924",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2019-11924",
"aliases": [
"CVE-2019-11924"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/facebookincubator/fizz",
"type": "GIT",
"events": [
{
"introduced": "f23526f10acb1df58580bf67bad67444eb3b16cc"
},
{
"last_affected": "b7cdd336a9b07ddcc646521a5c94df964dc3078c"
},
{
"fixed": "3eaddb33619eaaf74a760872850c550ad8f5c52f"
},
{
"fixed": "6bf67137ef1ee5cd70c842b014c322b7deaf994b"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:facebook:fizz:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2019.01.28.00"
},
{
"last_affected": "2019.08.05.00"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "3eaddb33619eaaf74a760872850c550ad8f5c52f"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "6bf67137ef1ee5cd70c842b014c322b7deaf994b"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"v2019.08.05.00",
"v2019.07.29.00",
"v2019.07.22.00",
"v2019.07.15.00",
"v2019.07.08.00",
"v2019.07.01.00",
"v2019.06.24.00",
"v2019.06.17.00",
"v2019.06.10.00",
"v2019.06.03.00",
"v2019.05.27.00",
"v2019.05.20.00",
"v2019.05.13.00",
"v2019.05.06.00",
"v2019.04.29.00",
"v2019.04.22.00",
"v2019.04.15.00",
"v2019.04.08.00",
"v2019.04.01.00",
"v2019.03.25.00",
"v2019.03.18.00",
"v2019.03.04.00",
"v2019.02.25.00",
"v2019.02.18.00",
"v2019.02.11.00",
"v2019.02.04.00",
"v2019.01.28.00"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-11924.json",
"vanir_signatures": [
{
"id": "CVE-2019-11924-531567ac",
"digest": {
"threshold": 0.9,
"line_hashes": [
"23378063232812343510597121253053980188",
"337853026302685657175503940457782108744",
"171101015422274171732617162602322313710",
"79890458142866171684638284595330799795"
]
},
"source": "https://github.com/facebookincubator/fizz/commit/3eaddb33619eaaf74a760872850c550ad8f5c52f",
"target": {
"file": "fizz/record/RecordLayer.cpp"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
},
{
"id": "CVE-2019-11924-7c2b9f5e",
"digest": {
"threshold": 0.9,
"line_hashes": [
"151199489339986283029704048209539753837",
"35517397393718965047041959265537461280",
"73305149069419082673031163121807567056",
"299230504749009405587606604815449187191"
]
},
"source": "https://github.com/facebookincubator/fizz/commit/6bf67137ef1ee5cd70c842b014c322b7deaf994b",
"target": {
"file": "fizz/record/EncryptedRecordLayer.cpp"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
},
{
"id": "CVE-2019-11924-8a69b045",
"digest": {
"length": 1132,
"function_hash": "254416132910290187238030529798420200517"
},
"source": "https://github.com/facebookincubator/fizz/commit/3eaddb33619eaaf74a760872850c550ad8f5c52f",
"target": {
"file": "fizz/record/EncryptedRecordLayer.cpp",
"function": "EncryptedReadRecordLayer::read"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
},
{
"id": "CVE-2019-11924-9024b023",
"digest": {
"length": 1319,
"function_hash": "20185177363206806993423567665697563818"
},
"source": "https://github.com/facebookincubator/fizz/commit/3eaddb33619eaaf74a760872850c550ad8f5c52f",
"target": {
"file": "fizz/record/RecordLayer.cpp",
"function": "ReadRecordLayer::readEvent"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
},
{
"id": "CVE-2019-11924-96f05d30",
"digest": {
"length": 1101,
"function_hash": "49798349820604613252873878731339836408"
},
"source": "https://github.com/facebookincubator/fizz/commit/6bf67137ef1ee5cd70c842b014c322b7deaf994b",
"target": {
"file": "fizz/record/EncryptedRecordLayer.cpp",
"function": "EncryptedReadRecordLayer::read"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
},
{
"id": "CVE-2019-11924-ccb6d187",
"digest": {
"threshold": 0.9,
"line_hashes": [
"126167036287190485449913774273983463764",
"314976124472739983757162543860846839118",
"125176223971053634981121029020663044270",
"2276244939192951602266807102936657032"
]
},
"source": "https://github.com/facebookincubator/fizz/commit/3eaddb33619eaaf74a760872850c550ad8f5c52f",
"target": {
"file": "fizz/record/EncryptedRecordLayer.cpp"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
},
{
"id": "CVE-2019-11924-fc571ce2",
"digest": {
"threshold": 0.9,
"line_hashes": [
"189038259679934174011018336465141156290",
"210192097367134237374705695310999135650",
"61635371859289304071434880827358365662",
"225304188162875061993311240583984993124"
]
},
"source": "https://github.com/facebookincubator/fizz/commit/6bf67137ef1ee5cd70c842b014c322b7deaf994b",
"target": {
"file": "fizz/record/test/EncryptedRecordTest.cpp"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-20T13:41:11Z"
}
}
],
"modified": "2026-10-20T13:41:11.612508519Z",
"provider": "osv",
"references": [
"https://www.facebook.com/security/advisories/cve-2019-11924",
"https://github.com/facebookincubator/fizz/commit/3eaddb33619eaaf74a760872850c550ad8f5c52f",
"https://github.com/facebookincubator/fizz/commit/6bf67137ef1ee5cd70c842b014c322b7deaf994b"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2019-11924",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 387962,
"published_at": "2019-08-20T20:15:11.29+00:00"
}