ubuntu-cve-2023-5215
Vulnerability from osv_ubuntu
Published
2023-09-28 14:15
Modified
2026-05-20 15:02
Summary
Details
A flaw was found in libnbd. A server can reply with a block size larger than 2^63 (the NBD spec states the size is a 64-bit unsigned value). This issue could lead to an application crash or other unintended behavior for NBD clients that doesn't treat the return value of the nbd_get_size() function correctly.
Severity
5.3 (Medium)
6.5 (Medium)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libnbd-ocaml",
"binary_version": "1.2.2-1ubuntu2"
},
{
"binary_name": "libnbd0",
"binary_version": "1.2.2-1ubuntu2"
},
{
"binary_name": "nbdfuse",
"binary_version": "1.2.2-1ubuntu2"
},
{
"binary_name": "python3-libnbd",
"binary_version": "1.2.2-1ubuntu2"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "libnbd",
"purl": "pkg:deb/ubuntu/libnbd@1.2.2-1ubuntu2?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.0.3-1",
"1.2.1-2",
"1.2.2-1ubuntu2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libnbd-bin",
"binary_version": "1.10.5-1"
},
{
"binary_name": "libnbd-ocaml",
"binary_version": "1.10.5-1"
},
{
"binary_name": "libnbd0",
"binary_version": "1.10.5-1"
},
{
"binary_name": "python3-libnbd",
"binary_version": "1.10.5-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "libnbd",
"purl": "pkg:deb/ubuntu/libnbd@1.10.5-1?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.6.3-1",
"1.8.5-1",
"1.10.2-1",
"1.10.5-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libnbd-bin",
"binary_version": "1.20.0-1"
},
{
"binary_name": "libnbd-ocaml",
"binary_version": "1.20.0-1"
},
{
"binary_name": "libnbd0",
"binary_version": "1.20.0-1"
},
{
"binary_name": "python3-libnbd",
"binary_version": "1.20.0-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "libnbd",
"purl": "pkg:deb/ubuntu/libnbd@1.20.0-1?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.16.4-1",
"1.18.1-1",
"1.18.2-1",
"1.18.2-1build1",
"1.18.2-2",
"1.18.2-2build1",
"1.20.0-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libnbd-bin",
"binary_version": "1.22.2-1build2"
},
{
"binary_name": "libnbd-ocaml",
"binary_version": "1.22.2-1build2"
},
{
"binary_name": "libnbd0",
"binary_version": "1.22.2-1build2"
},
{
"binary_name": "python3-libnbd",
"binary_version": "1.22.2-1build2"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "libnbd",
"purl": "pkg:deb/ubuntu/libnbd@1.22.2-1build2?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.22.0-1",
"1.22.2-1build1",
"1.22.2-1build2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libnbd-bin",
"binary_version": "1.24.2-1ubuntu1"
},
{
"binary_name": "libnbd-ocaml",
"binary_version": "1.24.2-1ubuntu1"
},
{
"binary_name": "libnbd0",
"binary_version": "1.24.2-1ubuntu1"
},
{
"binary_name": "python3-libnbd",
"binary_version": "1.24.2-1ubuntu1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "libnbd",
"purl": "pkg:deb/ubuntu/libnbd@1.24.2-1ubuntu1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.22.2-1build2",
"1.24.0-2ubuntu1",
"1.24.1-1ubuntu6",
"1.24.2-1ubuntu1"
]
}
],
"aliases": [],
"details": "A flaw was found in libnbd. A server can reply with a block size larger than 2^63 (the NBD spec states the size is a 64-bit unsigned value). This issue could lead to an application crash or other unintended behavior for NBD clients that doesn\u0027t treat the return value of the nbd_get_size() function correctly.",
"id": "UBUNTU-CVE-2023-5215",
"modified": "2026-05-20T15:02:15Z",
"published": "2023-09-28T14:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2023-5215"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2023-5215"
},
{
"type": "REPORT",
"url": "https://listman.redhat.com/archives/libguestfs/2023-September/032635.html"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-5215"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2023-5215"
]
}
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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.
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