ubuntu-cve-2022-26496
Vulnerability from osv_ubuntu
Published
2022-03-06 06:15
Modified
2025-10-24 04:53
Summary
Details
In nbd-server in nbd before 3.24, there is a stack-based buffer overflow. An attacker can cause a buffer overflow in the parsing of the name field by sending a crafted NBD_OPT_INFO or NBD_OPT_GO message with an large value as the length of the name.
Severity
9.8 (Critical)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "nbd-client",
"binary_version": "1:3.7-1ubuntu0.1"
},
{
"binary_name": "nbd-server",
"binary_version": "1:3.7-1ubuntu0.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:14.04:LTS",
"name": "nbd",
"purl": "pkg:deb/ubuntu/nbd@1:3.7-1ubuntu0.1?arch=source\u0026distro=trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:3.3-3ubuntu1",
"1:3.4-1ubuntu1",
"1:3.4-2ubuntu1",
"1:3.5-1ubuntu1",
"1:3.6-1ubuntu1",
"1:3.7-1",
"1:3.7-1ubuntu0.1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "nbd-client",
"binary_version": "1:3.13-1"
},
{
"binary_name": "nbd-server",
"binary_version": "1:3.13-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "nbd",
"purl": "pkg:deb/ubuntu/nbd@1:3.13-1?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:3.10-1",
"1:3.13-1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "nbd-client",
"binary_version": "1:3.16.2-1ubuntu0.2"
},
{
"binary_name": "nbd-server",
"binary_version": "1:3.16.2-1ubuntu0.2"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "nbd",
"purl": "pkg:deb/ubuntu/nbd@1:3.16.2-1ubuntu0.2?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1:3.16.2-1ubuntu0.2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:3.15.2-3",
"1:3.16.2-1",
"1:3.16.2-1ubuntu0.1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "nbd-client",
"binary_version": "1:3.20-1ubuntu0.1"
},
{
"binary_name": "nbd-server",
"binary_version": "1:3.20-1ubuntu0.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "nbd",
"purl": "pkg:deb/ubuntu/nbd@1:3.20-1ubuntu0.1?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1:3.20-1ubuntu0.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:3.19-3",
"1:3.20-1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "nbd-client",
"binary_version": "1:3.23-3ubuntu1"
},
{
"binary_name": "nbd-server",
"binary_version": "1:3.23-3ubuntu1"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "nbd",
"purl": "pkg:deb/ubuntu/nbd@1:3.23-3ubuntu1?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1:3.23-3ubuntu1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:3.21-1build3",
"1:3.22-1",
"1:3.23-3"
]
}
],
"aliases": [],
"details": "In nbd-server in nbd before 3.24, there is a stack-based buffer overflow. An attacker can cause a buffer overflow in the parsing of the name field by sending a crafted NBD_OPT_INFO or NBD_OPT_GO message with an large value as the length of the name.",
"id": "UBUNTU-CVE-2022-26496",
"modified": "2025-10-24T04:53:34Z",
"published": "2022-03-06T06:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2022-26496"
},
{
"type": "REPORT",
"url": "https://lists.debian.org/nbd/2022/01/msg00036.html"
},
{
"type": "REPORT",
"url": "https://lists.debian.org/nbd/2022/01/msg00037.html"
},
{
"type": "REPORT",
"url": "https://sourceforge.net/projects/nbd/files/nbd/"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-5323-1"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-26496"
}
],
"related": [
"USN-5323-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2022-26496"
]
}
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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.
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- 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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