usn-8625-1
Vulnerability from osv_ubuntu
Published
2026-07-30 13:38
Modified
2026-07-30 13:38
Summary
openssl vulnerability
Details
It was discovered that OpenSSL incorrectly allocated memory buffers in the SSL/TLS state machine when receiving handshake data. A remote attacker could possibly use this issue to cause OpenSSL to consume excessive memory, leading to a denial of service. This issue is known as the "HollowByte" denial of service.
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [],
"ecosystem": "Ubuntu:22.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libssl3",
"binary_version": "3.0.2-0ubuntu1.26"
},
{
"binary_name": "openssl",
"binary_version": "3.0.2-0ubuntu1.26"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "openssl",
"purl": "pkg:deb/ubuntu/openssl@3.0.2-0ubuntu1.26?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.0.2-0ubuntu1.26"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.1.1l-1ubuntu1",
"3.0.0-1ubuntu1",
"3.0.1-0ubuntu1",
"3.0.2-0ubuntu1",
"3.0.2-0ubuntu1.1",
"3.0.2-0ubuntu1.2",
"3.0.2-0ubuntu1.4",
"3.0.2-0ubuntu1.5",
"3.0.2-0ubuntu1.6",
"3.0.2-0ubuntu1.7",
"3.0.2-0ubuntu1.8",
"3.0.2-0ubuntu1.9",
"3.0.2-0ubuntu1.10",
"3.0.2-0ubuntu1.12",
"3.0.2-0ubuntu1.13",
"3.0.2-0ubuntu1.14",
"3.0.2-0ubuntu1.15",
"3.0.2-0ubuntu1.16",
"3.0.2-0ubuntu1.17",
"3.0.2-0ubuntu1.18",
"3.0.2-0ubuntu1.19",
"3.0.2-0ubuntu1.20",
"3.0.2-0ubuntu1.21",
"3.0.2-0ubuntu1.23",
"3.0.2-0ubuntu1.25"
]
},
{
"database_specific": {
"cves_map": {
"cves": [],
"ecosystem": "Ubuntu:24.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libssl3t64",
"binary_version": "3.0.13-0ubuntu3.12"
},
{
"binary_name": "openssl",
"binary_version": "3.0.13-0ubuntu3.12"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "openssl",
"purl": "pkg:deb/ubuntu/openssl@3.0.13-0ubuntu3.12?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.0.13-0ubuntu3.12"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.0.10-1ubuntu2",
"3.0.10-1ubuntu2.1",
"3.0.10-1ubuntu3",
"3.0.10-1ubuntu4",
"3.0.13-0ubuntu2",
"3.0.13-0ubuntu3",
"3.0.13-0ubuntu3.1",
"3.0.13-0ubuntu3.2",
"3.0.13-0ubuntu3.3",
"3.0.13-0ubuntu3.4",
"3.0.13-0ubuntu3.5",
"3.0.13-0ubuntu3.6",
"3.0.13-0ubuntu3.7",
"3.0.13-0ubuntu3.9",
"3.0.13-0ubuntu3.11"
]
},
{
"database_specific": {
"cves_map": {
"cves": [],
"ecosystem": "Ubuntu:26.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libssl3t64",
"binary_version": "3.5.5-1ubuntu3.3"
},
{
"binary_name": "openssl",
"binary_version": "3.5.5-1ubuntu3.3"
},
{
"binary_name": "openssl-provider-legacy",
"binary_version": "3.5.5-1ubuntu3.3"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "openssl",
"purl": "pkg:deb/ubuntu/openssl@3.5.5-1ubuntu3.3?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.5.5-1ubuntu3.3"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.5.3-1ubuntu2",
"3.5.5-1ubuntu1",
"3.5.5-1ubuntu3",
"3.5.5-1ubuntu3.2"
]
}
],
"aliases": [],
"details": "It was discovered that OpenSSL incorrectly allocated memory buffers in the\nSSL/TLS state machine when receiving handshake data. A remote attacker\ncould possibly use this issue to cause OpenSSL to consume excessive memory,\nleading to a denial of service. This issue is known as the \"HollowByte\"\ndenial of service.",
"id": "USN-8625-1",
"modified": "2026-07-30T13:38:32Z",
"published": "2026-07-30T13:38:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8625-1"
},
{
"type": "REPORT",
"url": "https://launchpad.net/bugs/2161371"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "openssl vulnerability",
"upstream": []
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
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