ubuntu-cve-2020-1711
Vulnerability from osv_ubuntu
Published
2020-02-11 20:15
Modified
2026-06-09 19:03
Summary
Details
An out-of-bounds heap buffer access flaw was found in the way the iSCSI Block driver in QEMU versions 2.12.0 before 4.2.1 handled a response coming from an iSCSI server while checking the status of a Logical Address Block (LBA) in an iscsi_co_block_status() routine. A remote user could use this flaw to crash the QEMU process, resulting in a denial of service or potential execution of arbitrary code with privileges of the QEMU process on the host.
Severity
7.7 (High)
6.0 (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": "qemu",
"binary_version": "2.0.0+dfsg-2ubuntu1.47+esm6"
},
{
"binary_name": "qemu-common",
"binary_version": "2.0.0+dfsg-2ubuntu1.47+esm6"
},
{
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"binary_version": "2.0.0+dfsg-2ubuntu1.47+esm6"
},
{
"binary_name": "qemu-keymaps",
"binary_version": "2.0.0+dfsg-2ubuntu1.47+esm6"
},
{
"binary_name": "qemu-kvm",
"binary_version": "2.0.0+dfsg-2ubuntu1.47+esm6"
},
{
"binary_name": "qemu-system",
"binary_version": "2.0.0+dfsg-2ubuntu1.47+esm6"
},
{
"binary_name": "qemu-system-aarch64",
"binary_version": "2.0.0+dfsg-2ubuntu1.47+esm6"
},
{
"binary_name": "qemu-system-arm",
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},
{
"binary_name": "qemu-system-common",
"binary_version": "2.0.0+dfsg-2ubuntu1.47+esm6"
},
{
"binary_name": "qemu-system-mips",
"binary_version": "2.0.0+dfsg-2ubuntu1.47+esm6"
},
{
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"binary_version": "2.0.0+dfsg-2ubuntu1.47+esm6"
},
{
"binary_name": "qemu-system-ppc",
"binary_version": "2.0.0+dfsg-2ubuntu1.47+esm6"
},
{
"binary_name": "qemu-system-sparc",
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},
{
"binary_name": "qemu-system-x86",
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},
{
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},
{
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},
{
"binary_name": "qemu-utils",
"binary_version": "2.0.0+dfsg-2ubuntu1.47+esm6"
}
]
},
"package": {
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"name": "qemu",
"purl": "pkg:deb/ubuntu/qemu@2.0.0+dfsg-2ubuntu1.47+esm6?arch=source\u0026distro=esm-infra-legacy/trusty"
},
"ranges": [
{
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{
"introduced": "0"
},
{
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}
],
"type": "ECOSYSTEM"
}
],
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"1.6.0+dfsg-2ubuntu2",
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"1.7.0+dfsg-2ubuntu1",
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"1.7.0+dfsg-2ubuntu7",
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"1.7.0+dfsg-3ubuntu4",
"1.7.0+dfsg-3ubuntu5",
"1.7.0+dfsg-3ubuntu6",
"1.7.0+dfsg-3ubuntu7",
"2.0.0~rc1+dfsg-0ubuntu1",
"2.0.0~rc1+dfsg-0ubuntu2",
"2.0.0~rc1+dfsg-0ubuntu3",
"2.0.0~rc1+dfsg-0ubuntu3.1",
"2.0.0+dfsg-2ubuntu1",
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"2.0.0+dfsg-2ubuntu1.16",
"2.0.0+dfsg-2ubuntu1.17",
"2.0.0+dfsg-2ubuntu1.18",
"2.0.0+dfsg-2ubuntu1.19",
"2.0.0+dfsg-2ubuntu1.20",
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"2.0.0+dfsg-2ubuntu1.22",
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"2.0.0+dfsg-2ubuntu1.25",
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"2.0.0+dfsg-2ubuntu1.45",
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},
{
"ecosystem_specific": {
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},
{
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},
{
"binary_name": "qemu-guest-agent",
"binary_version": "1:2.5+dfsg-5ubuntu10.43"
},
{
"binary_name": "qemu-kvm",
"binary_version": "1:2.5+dfsg-5ubuntu10.43"
},
{
"binary_name": "qemu-system",
"binary_version": "1:2.5+dfsg-5ubuntu10.43"
},
{
"binary_name": "qemu-system-aarch64",
"binary_version": "1:2.5+dfsg-5ubuntu10.43"
},
{
"binary_name": "qemu-system-arm",
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},
{
"binary_name": "qemu-system-common",
"binary_version": "1:2.5+dfsg-5ubuntu10.43"
},
{
"binary_name": "qemu-system-mips",
"binary_version": "1:2.5+dfsg-5ubuntu10.43"
},
{
"binary_name": "qemu-system-misc",
"binary_version": "1:2.5+dfsg-5ubuntu10.43"
},
{
"binary_name": "qemu-system-ppc",
"binary_version": "1:2.5+dfsg-5ubuntu10.43"
},
{
"binary_name": "qemu-system-s390x",
"binary_version": "1:2.5+dfsg-5ubuntu10.43"
},
{
"binary_name": "qemu-system-sparc",
"binary_version": "1:2.5+dfsg-5ubuntu10.43"
},
{
"binary_name": "qemu-system-x86",
"binary_version": "1:2.5+dfsg-5ubuntu10.43"
},
{
"binary_name": "qemu-user",
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},
{
"binary_name": "qemu-user-binfmt",
"binary_version": "1:2.5+dfsg-5ubuntu10.43"
},
{
"binary_name": "qemu-user-static",
"binary_version": "1:2.5+dfsg-5ubuntu10.43"
},
{
"binary_name": "qemu-utils",
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}
]
},
"package": {
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"purl": "pkg:deb/ubuntu/qemu@1:2.5+dfsg-5ubuntu10.43?arch=source\u0026distro=xenial"
},
"ranges": [
{
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{
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},
{
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}
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},
{
"ecosystem_specific": {
"availability": "No subscription required",
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{
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},
{
"binary_name": "qemu-block-extra",
"binary_version": "1:2.11+dfsg-1ubuntu7.23"
},
{
"binary_name": "qemu-guest-agent",
"binary_version": "1:2.11+dfsg-1ubuntu7.23"
},
{
"binary_name": "qemu-kvm",
"binary_version": "1:2.11+dfsg-1ubuntu7.23"
},
{
"binary_name": "qemu-system",
"binary_version": "1:2.11+dfsg-1ubuntu7.23"
},
{
"binary_name": "qemu-system-arm",
"binary_version": "1:2.11+dfsg-1ubuntu7.23"
},
{
"binary_name": "qemu-system-common",
"binary_version": "1:2.11+dfsg-1ubuntu7.23"
},
{
"binary_name": "qemu-system-mips",
"binary_version": "1:2.11+dfsg-1ubuntu7.23"
},
{
"binary_name": "qemu-system-misc",
"binary_version": "1:2.11+dfsg-1ubuntu7.23"
},
{
"binary_name": "qemu-system-ppc",
"binary_version": "1:2.11+dfsg-1ubuntu7.23"
},
{
"binary_name": "qemu-system-s390x",
"binary_version": "1:2.11+dfsg-1ubuntu7.23"
},
{
"binary_name": "qemu-system-sparc",
"binary_version": "1:2.11+dfsg-1ubuntu7.23"
},
{
"binary_name": "qemu-system-x86",
"binary_version": "1:2.11+dfsg-1ubuntu7.23"
},
{
"binary_name": "qemu-user",
"binary_version": "1:2.11+dfsg-1ubuntu7.23"
},
{
"binary_name": "qemu-user-binfmt",
"binary_version": "1:2.11+dfsg-1ubuntu7.23"
},
{
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},
{
"binary_name": "qemu-utils",
"binary_version": "1:2.11+dfsg-1ubuntu7.23"
}
]
},
"package": {
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"name": "qemu",
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},
"ranges": [
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{
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},
{
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{
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{
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},
{
"binary_name": "qemu-system",
"binary_version": "1:4.2-3ubuntu1"
},
{
"binary_name": "qemu-system-arm",
"binary_version": "1:4.2-3ubuntu1"
},
{
"binary_name": "qemu-system-common",
"binary_version": "1:4.2-3ubuntu1"
},
{
"binary_name": "qemu-system-data",
"binary_version": "1:4.2-3ubuntu1"
},
{
"binary_name": "qemu-system-gui",
"binary_version": "1:4.2-3ubuntu1"
},
{
"binary_name": "qemu-system-mips",
"binary_version": "1:4.2-3ubuntu1"
},
{
"binary_name": "qemu-system-misc",
"binary_version": "1:4.2-3ubuntu1"
},
{
"binary_name": "qemu-system-ppc",
"binary_version": "1:4.2-3ubuntu1"
},
{
"binary_name": "qemu-system-s390x",
"binary_version": "1:4.2-3ubuntu1"
},
{
"binary_name": "qemu-system-sparc",
"binary_version": "1:4.2-3ubuntu1"
},
{
"binary_name": "qemu-system-x86",
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},
{
"binary_name": "qemu-system-x86-microvm",
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{
"binary_name": "qemu-system-x86-xen",
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{
"binary_name": "qemu-user",
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},
{
"binary_name": "qemu-user-binfmt",
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},
{
"binary_name": "qemu-user-static",
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},
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]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "qemu",
"purl": "pkg:deb/ubuntu/qemu@1:4.2-3ubuntu1?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1:4.2-3ubuntu1"
}
],
"type": "ECOSYSTEM"
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],
"versions": [
"1:4.0+dfsg-0ubuntu9",
"1:4.0+dfsg-0ubuntu10",
"1:4.2-1ubuntu1",
"1:4.2-1ubuntu2"
]
}
],
"aliases": [],
"details": "An out-of-bounds heap buffer access flaw was found in the way the iSCSI Block driver in QEMU versions 2.12.0 before 4.2.1 handled a response coming from an iSCSI server while checking the status of a Logical Address Block (LBA) in an iscsi_co_block_status() routine. A remote user could use this flaw to crash the QEMU process, resulting in a denial of service or potential execution of arbitrary code with privileges of the QEMU process on the host.",
"id": "UBUNTU-CVE-2020-1711",
"modified": "2026-06-09T19:03:30Z",
"published": "2020-02-11T20:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2020-1711"
},
{
"type": "REPORT",
"url": "https://www.openwall.com/lists/oss-security/2020/01/23/3"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-4283-1"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-1711"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8412-1"
}
],
"related": [
"USN-4283-1",
"USN-8412-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2020-1711"
]
}
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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.
- 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.
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