UBUNTU-CVE-2024-2494 (CVE-2024-2494)
Vulnerability from osv_ubuntu – Published: 2024-03-20 12:00 – Updated: 2026-08-20 02:36 – Source website
VLAI
Details
A flaw was found in the RPC library APIs of libvirt. The RPC server deserialization code allocates memory for arrays before the non-negative length check is performed by the C API entry points. Passing a negative length to the g_new0 function results in a crash due to the negative length being treated as a huge positive number. This flaw allows a local, unprivileged user to perform a denial of service attack by causing the libvirt daemon to crash.
Severity
6.2 (Medium)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libvirt-bin",
"binary_version": "1.2.2-0ubuntu13.1.28+esm2"
},
{
"binary_name": "libvirt0",
"binary_version": "1.2.2-0ubuntu13.1.28+esm2"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:14.04:LTS",
"name": "libvirt",
"purl": "pkg:deb/ubuntu/libvirt@1.2.2-0ubuntu13.1.28+esm2?arch=source\u0026distro=esm-infra-legacy/trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.2.2-0ubuntu13.1.28+esm2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.1.1-0ubuntu8",
"1.1.1-0ubuntu9",
"1.1.4-0ubuntu2",
"1.1.4-0ubuntu3",
"1.1.4-0ubuntu4",
"1.1.4-0ubuntu5",
"1.2.0-0ubuntu1",
"1.2.0-0ubuntu2",
"1.2.0-0ubuntu3",
"1.2.1-0ubuntu1",
"1.2.1-0ubuntu2",
"1.2.1-0ubuntu3",
"1.2.1-0ubuntu4",
"1.2.1-0ubuntu5",
"1.2.1-0ubuntu7",
"1.2.1-0ubuntu8",
"1.2.1-0ubuntu9",
"1.2.1-0ubuntu10",
"1.2.2-0ubuntu1",
"1.2.2-0ubuntu2",
"1.2.2-0ubuntu3",
"1.2.2-0ubuntu4",
"1.2.2-0ubuntu5",
"1.2.2-0ubuntu6",
"1.2.2-0ubuntu7",
"1.2.2-0ubuntu8",
"1.2.2-0ubuntu9",
"1.2.2-0ubuntu10",
"1.2.2-0ubuntu11",
"1.2.2-0ubuntu12",
"1.2.2-0ubuntu13",
"1.2.2-0ubuntu13.1",
"1.2.2-0ubuntu13.1.1",
"1.2.2-0ubuntu13.1.2",
"1.2.2-0ubuntu13.1.4",
"1.2.2-0ubuntu13.1.5",
"1.2.2-0ubuntu13.1.6",
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"1.2.2-0ubuntu13.1.10",
"1.2.2-0ubuntu13.1.12",
"1.2.2-0ubuntu13.1.14",
"1.2.2-0ubuntu13.1.16",
"1.2.2-0ubuntu13.1.17",
"1.2.2-0ubuntu13.1.20",
"1.2.2-0ubuntu13.1.21",
"1.2.2-0ubuntu13.1.22",
"1.2.2-0ubuntu13.1.23",
"1.2.2-0ubuntu13.1.25",
"1.2.2-0ubuntu13.1.26",
"1.2.2-0ubuntu13.1.27",
"1.2.2-0ubuntu13.1.28",
"1.2.2-0ubuntu13.1.28+esm1"
]
},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libvirt-bin",
"binary_version": "1.3.1-1ubuntu10.31+esm1"
},
{
"binary_name": "libvirt0",
"binary_version": "1.3.1-1ubuntu10.31+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "libvirt",
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},
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{
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}
],
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"1.3.1-1ubuntu10.12",
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"1.3.1-1ubuntu10.14",
"1.3.1-1ubuntu10.15",
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"1.3.1-1ubuntu10.19",
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"1.3.1-1ubuntu10.22",
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]
},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libnss-libvirt",
"binary_version": "4.0.0-1ubuntu8.21+esm1"
},
{
"binary_name": "libvirt-bin",
"binary_version": "4.0.0-1ubuntu8.21+esm1"
},
{
"binary_name": "libvirt-clients",
"binary_version": "4.0.0-1ubuntu8.21+esm1"
},
{
"binary_name": "libvirt-daemon",
"binary_version": "4.0.0-1ubuntu8.21+esm1"
},
{
"binary_name": "libvirt-daemon-driver-storage-gluster",
"binary_version": "4.0.0-1ubuntu8.21+esm1"
},
{
"binary_name": "libvirt-daemon-driver-storage-rbd",
"binary_version": "4.0.0-1ubuntu8.21+esm1"
},
{
"binary_name": "libvirt-daemon-driver-storage-sheepdog",
"binary_version": "4.0.0-1ubuntu8.21+esm1"
},
{
"binary_name": "libvirt-daemon-driver-storage-zfs",
"binary_version": "4.0.0-1ubuntu8.21+esm1"
},
{
"binary_name": "libvirt-daemon-system",
"binary_version": "4.0.0-1ubuntu8.21+esm1"
},
{
"binary_name": "libvirt-sanlock",
"binary_version": "4.0.0-1ubuntu8.21+esm1"
},
{
"binary_name": "libvirt-wireshark",
"binary_version": "4.0.0-1ubuntu8.21+esm1"
},
{
"binary_name": "libvirt0",
"binary_version": "4.0.0-1ubuntu8.21+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"name": "libvirt",
"purl": "pkg:deb/ubuntu/libvirt@4.0.0-1ubuntu8.21+esm1?arch=source\u0026distro=esm-infra/bionic"
},
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"4.0.0-1ubuntu4",
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"4.0.0-1ubuntu7",
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"4.0.0-1ubuntu8.1",
"4.0.0-1ubuntu8.2",
"4.0.0-1ubuntu8.3",
"4.0.0-1ubuntu8.4",
"4.0.0-1ubuntu8.5",
"4.0.0-1ubuntu8.6",
"4.0.0-1ubuntu8.7",
"4.0.0-1ubuntu8.8",
"4.0.0-1ubuntu8.9",
"4.0.0-1ubuntu8.10",
"4.0.0-1ubuntu8.11",
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"4.0.0-1ubuntu8.13",
"4.0.0-1ubuntu8.14",
"4.0.0-1ubuntu8.15",
"4.0.0-1ubuntu8.16",
"4.0.0-1ubuntu8.17",
"4.0.0-1ubuntu8.19",
"4.0.0-1ubuntu8.20",
"4.0.0-1ubuntu8.21"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libnss-libvirt",
"binary_version": "6.0.0-0ubuntu8.19"
},
{
"binary_name": "libvirt-clients",
"binary_version": "6.0.0-0ubuntu8.19"
},
{
"binary_name": "libvirt-daemon",
"binary_version": "6.0.0-0ubuntu8.19"
},
{
"binary_name": "libvirt-daemon-driver-lxc",
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},
{
"binary_name": "libvirt-daemon-driver-qemu",
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},
{
"binary_name": "libvirt-daemon-driver-storage-gluster",
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},
{
"binary_name": "libvirt-daemon-driver-storage-rbd",
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},
{
"binary_name": "libvirt-daemon-driver-storage-zfs",
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},
{
"binary_name": "libvirt-daemon-driver-vbox",
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},
{
"binary_name": "libvirt-daemon-driver-xen",
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},
{
"binary_name": "libvirt-daemon-system",
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},
{
"binary_name": "libvirt-daemon-system-systemd",
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},
{
"binary_name": "libvirt-daemon-system-sysv",
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},
{
"binary_name": "libvirt-sanlock",
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},
{
"binary_name": "libvirt-wireshark",
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},
{
"binary_name": "libvirt0",
"binary_version": "6.0.0-0ubuntu8.19"
}
]
},
"package": {
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},
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"6.0.0-0ubuntu4",
"6.0.0-0ubuntu5",
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},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
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},
{
"binary_name": "libvirt-clients",
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},
{
"binary_name": "libvirt-daemon",
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},
{
"binary_name": "libvirt-daemon-config-network",
"binary_version": "8.0.0-1ubuntu7.10"
},
{
"binary_name": "libvirt-daemon-config-nwfilter",
"binary_version": "8.0.0-1ubuntu7.10"
},
{
"binary_name": "libvirt-daemon-driver-lxc",
"binary_version": "8.0.0-1ubuntu7.10"
},
{
"binary_name": "libvirt-daemon-driver-qemu",
"binary_version": "8.0.0-1ubuntu7.10"
},
{
"binary_name": "libvirt-daemon-driver-storage-gluster",
"binary_version": "8.0.0-1ubuntu7.10"
},
{
"binary_name": "libvirt-daemon-driver-storage-iscsi-direct",
"binary_version": "8.0.0-1ubuntu7.10"
},
{
"binary_name": "libvirt-daemon-driver-storage-rbd",
"binary_version": "8.0.0-1ubuntu7.10"
},
{
"binary_name": "libvirt-daemon-driver-storage-zfs",
"binary_version": "8.0.0-1ubuntu7.10"
},
{
"binary_name": "libvirt-daemon-driver-vbox",
"binary_version": "8.0.0-1ubuntu7.10"
},
{
"binary_name": "libvirt-daemon-driver-xen",
"binary_version": "8.0.0-1ubuntu7.10"
},
{
"binary_name": "libvirt-daemon-system",
"binary_version": "8.0.0-1ubuntu7.10"
},
{
"binary_name": "libvirt-daemon-system-systemd",
"binary_version": "8.0.0-1ubuntu7.10"
},
{
"binary_name": "libvirt-daemon-system-sysv",
"binary_version": "8.0.0-1ubuntu7.10"
},
{
"binary_name": "libvirt-login-shell",
"binary_version": "8.0.0-1ubuntu7.10"
},
{
"binary_name": "libvirt-sanlock",
"binary_version": "8.0.0-1ubuntu7.10"
},
{
"binary_name": "libvirt-wireshark",
"binary_version": "8.0.0-1ubuntu7.10"
},
{
"binary_name": "libvirt0",
"binary_version": "8.0.0-1ubuntu7.10"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "libvirt",
"purl": "pkg:deb/ubuntu/libvirt@8.0.0-1ubuntu7.10?arch=source\u0026distro=jammy"
},
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"8.0.0-1ubuntu6",
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"8.0.0-1ubuntu7.8",
"8.0.0-1ubuntu7.9"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libnss-libvirt",
"binary_version": "10.0.0-2ubuntu8.1"
},
{
"binary_name": "libvirt-clients",
"binary_version": "10.0.0-2ubuntu8.1"
},
{
"binary_name": "libvirt-clients-qemu",
"binary_version": "10.0.0-2ubuntu8.1"
},
{
"binary_name": "libvirt-daemon",
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},
{
"binary_name": "libvirt-daemon-config-network",
"binary_version": "10.0.0-2ubuntu8.1"
},
{
"binary_name": "libvirt-daemon-config-nwfilter",
"binary_version": "10.0.0-2ubuntu8.1"
},
{
"binary_name": "libvirt-daemon-driver-lxc",
"binary_version": "10.0.0-2ubuntu8.1"
},
{
"binary_name": "libvirt-daemon-driver-qemu",
"binary_version": "10.0.0-2ubuntu8.1"
},
{
"binary_name": "libvirt-daemon-driver-storage-gluster",
"binary_version": "10.0.0-2ubuntu8.1"
},
{
"binary_name": "libvirt-daemon-driver-storage-iscsi-direct",
"binary_version": "10.0.0-2ubuntu8.1"
},
{
"binary_name": "libvirt-daemon-driver-storage-rbd",
"binary_version": "10.0.0-2ubuntu8.1"
},
{
"binary_name": "libvirt-daemon-driver-storage-zfs",
"binary_version": "10.0.0-2ubuntu8.1"
},
{
"binary_name": "libvirt-daemon-driver-vbox",
"binary_version": "10.0.0-2ubuntu8.1"
},
{
"binary_name": "libvirt-daemon-driver-xen",
"binary_version": "10.0.0-2ubuntu8.1"
},
{
"binary_name": "libvirt-daemon-system",
"binary_version": "10.0.0-2ubuntu8.1"
},
{
"binary_name": "libvirt-daemon-system-systemd",
"binary_version": "10.0.0-2ubuntu8.1"
},
{
"binary_name": "libvirt-daemon-system-sysv",
"binary_version": "10.0.0-2ubuntu8.1"
},
{
"binary_name": "libvirt-l10n",
"binary_version": "10.0.0-2ubuntu8.1"
},
{
"binary_name": "libvirt-login-shell",
"binary_version": "10.0.0-2ubuntu8.1"
},
{
"binary_name": "libvirt-sanlock",
"binary_version": "10.0.0-2ubuntu8.1"
},
{
"binary_name": "libvirt-wireshark",
"binary_version": "10.0.0-2ubuntu8.1"
},
{
"binary_name": "libvirt0",
"binary_version": "10.0.0-2ubuntu8.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "libvirt",
"purl": "pkg:deb/ubuntu/libvirt@10.0.0-2ubuntu8.1?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
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}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"9.6.0-1ubuntu1",
"9.6.0-1ubuntu2",
"10.0.0-1ubuntu1",
"10.0.0-2ubuntu1",
"10.0.0-2ubuntu5",
"10.0.0-2ubuntu7",
"10.0.0-2ubuntu8"
]
}
],
"aliases": [],
"details": "A flaw was found in the RPC library APIs of libvirt. The RPC server deserialization code allocates memory for arrays before the non-negative length check is performed by the C API entry points. Passing a negative length to the g_new0 function results in a crash due to the negative length being treated as a huge positive number. This flaw allows a local, unprivileged user to perform a denial of service attack by causing the libvirt daemon to crash.",
"id": "UBUNTU-CVE-2024-2494",
"modified": "2026-08-20T02:36:11Z",
"published": "2024-03-20T12:00:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2024-2494"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-2494"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-6734-1"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-6734-2"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8652-1"
}
],
"related": [
"USN-6734-1",
"USN-6734-2",
"USN-8652-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2024-2494"
]
}
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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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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