GSD-2018-1087
Vulnerability from gsd - Updated: 2023-12-13 01:22Details
kernel KVM before versions kernel 4.16, kernel 4.16-rc7, kernel 4.17-rc1, kernel 4.17-rc2 and kernel 4.17-rc3 is vulnerable to a flaw in the way the Linux kernel's KVM hypervisor handled exceptions delivered after a stack switch operation via Mov SS or Pop SS instructions. During the stack switch operation, the processor did not deliver interrupts and exceptions, rather they are delivered once the first instruction after the stack switch is executed. An unprivileged KVM guest user could use this flaw to crash the guest or, potentially, escalate their privileges in the guest.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2018-1087",
"description": "kernel KVM before versions kernel 4.16, kernel 4.16-rc7, kernel 4.17-rc1, kernel 4.17-rc2 and kernel 4.17-rc3 is vulnerable to a flaw in the way the Linux kernel\u0027s KVM hypervisor handled exceptions delivered after a stack switch operation via Mov SS or Pop SS instructions. During the stack switch operation, the processor did not deliver interrupts and exceptions, rather they are delivered once the first instruction after the stack switch is executed. An unprivileged KVM guest user could use this flaw to crash the guest or, potentially, escalate their privileges in the guest.",
"id": "GSD-2018-1087",
"references": [
"https://www.suse.com/security/cve/CVE-2018-1087.html",
"https://www.debian.org/security/2018/dsa-4196",
"https://access.redhat.com/errata/RHSA-2018:1711",
"https://access.redhat.com/errata/RHSA-2018:1710",
"https://access.redhat.com/errata/RHSA-2018:1524",
"https://access.redhat.com/errata/RHSA-2018:1355",
"https://access.redhat.com/errata/RHSA-2018:1348",
"https://access.redhat.com/errata/RHSA-2018:1347",
"https://access.redhat.com/errata/RHSA-2018:1345",
"https://access.redhat.com/errata/RHSA-2018:1318",
"https://ubuntu.com/security/CVE-2018-1087",
"https://advisories.mageia.org/CVE-2018-1087.html",
"https://alas.aws.amazon.com/cve/html/CVE-2018-1087.html",
"https://linux.oracle.com/cve/CVE-2018-1087.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2018-1087"
],
"details": "kernel KVM before versions kernel 4.16, kernel 4.16-rc7, kernel 4.17-rc1, kernel 4.17-rc2 and kernel 4.17-rc3 is vulnerable to a flaw in the way the Linux kernel\u0027s KVM hypervisor handled exceptions delivered after a stack switch operation via Mov SS or Pop SS instructions. During the stack switch operation, the processor did not deliver interrupts and exceptions, rather they are delivered once the first instruction after the stack switch is executed. An unprivileged KVM guest user could use this flaw to crash the guest or, potentially, escalate their privileges in the guest.",
"id": "GSD-2018-1087",
"modified": "2023-12-13T01:22:37.498657Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "secalert@redhat.com",
"ID": "CVE-2018-1087",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "KVM",
"version": {
"version_data": [
{
"version_value": "kernel 4.16"
},
{
"version_value": "kernel 4.16-rc7"
},
{
"version_value": "kernel 4.17-rc1"
},
{
"version_value": "kernel 4.17-rc2"
},
{
"version_value": "kernel 4.17-rc3"
}
]
}
}
]
},
"vendor_name": "kernel"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "kernel KVM before versions kernel 4.16, kernel 4.16-rc7, kernel 4.17-rc1, kernel 4.17-rc2 and kernel 4.17-rc3 is vulnerable to a flaw in the way the Linux kernel\u0027s KVM hypervisor handled exceptions delivered after a stack switch operation via Mov SS or Pop SS instructions. During the stack switch operation, the processor did not deliver interrupts and exceptions, rather they are delivered once the first instruction after the stack switch is executed. An unprivileged KVM guest user could use this flaw to crash the guest or, potentially, escalate their privileges in the guest."
}
]
},
"impact": {
"cvss": [
[
{
"vectorString": "8.0/CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.0"
}
]
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-250"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "RHSA-2018:1347",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2018:1347"
},
{
"name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1087",
"refsource": "CONFIRM",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1087"
},
{
"name": "1040862",
"refsource": "SECTRACK",
"url": "http://www.securitytracker.com/id/1040862"
},
{
"name": "RHSA-2018:1348",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2018:1348"
},
{
"name": "DSA-4196",
"refsource": "DEBIAN",
"url": "https://www.debian.org/security/2018/dsa-4196"
},
{
"name": "RHSA-2018:1355",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2018:1355"
},
{
"name": "RHSA-2018:1345",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2018:1345"
},
{
"name": "https://access.redhat.com/security/vulnerabilities/pop_ss",
"refsource": "MISC",
"url": "https://access.redhat.com/security/vulnerabilities/pop_ss"
},
{
"name": "RHSA-2018:1318",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2018:1318"
},
{
"name": "RHSA-2018:1524",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2018:1524"
},
{
"name": "http://www.openwall.com/lists/oss-security/2018/05/08/5",
"refsource": "MISC",
"url": "http://www.openwall.com/lists/oss-security/2018/05/08/5"
},
{
"name": "104127",
"refsource": "BID",
"url": "http://www.securityfocus.com/bid/104127"
},
{
"name": "USN-3641-2",
"refsource": "UBUNTU",
"url": "https://usn.ubuntu.com/3641-2/"
},
{
"name": "USN-3641-1",
"refsource": "UBUNTU",
"url": "https://usn.ubuntu.com/3641-1/"
}
]
}
},
"nvd.nist.gov": {
"configurations": {
"CVE_data_version": "4.0",
"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:4.17:rc3:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:4.16:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:4.17:rc1:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:4.17:rc2:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:4.16:rc7:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
}
],
"operator": "OR"
},
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
}
],
"operator": "OR"
},
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
}
],
"operator": "OR"
},
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_virtualization:4.0:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_server_tus:7.4:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_server_tus:7.2:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
}
],
"operator": "OR"
}
]
},
"cve": {
"CVE_data_meta": {
"ASSIGNER": "secalert@redhat.com",
"ID": "CVE-2018-1087"
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "en",
"value": "kernel KVM before versions kernel 4.16, kernel 4.16-rc7, kernel 4.17-rc1, kernel 4.17-rc2 and kernel 4.17-rc3 is vulnerable to a flaw in the way the Linux kernel\u0027s KVM hypervisor handled exceptions delivered after a stack switch operation via Mov SS or Pop SS instructions. During the stack switch operation, the processor did not deliver interrupts and exceptions, rather they are delivered once the first instruction after the stack switch is executed. An unprivileged KVM guest user could use this flaw to crash the guest or, potentially, escalate their privileges in the guest."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1087",
"refsource": "CONFIRM",
"tags": [
"Issue Tracking"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1087"
},
{
"name": "https://access.redhat.com/security/vulnerabilities/pop_ss",
"refsource": "MISC",
"tags": [
"Third Party Advisory"
],
"url": "https://access.redhat.com/security/vulnerabilities/pop_ss"
},
{
"name": "http://www.openwall.com/lists/oss-security/2018/05/08/5",
"refsource": "MISC",
"tags": [
"Mailing List"
],
"url": "http://www.openwall.com/lists/oss-security/2018/05/08/5"
},
{
"name": "DSA-4196",
"refsource": "DEBIAN",
"tags": [
"Third Party Advisory"
],
"url": "https://www.debian.org/security/2018/dsa-4196"
},
{
"name": "USN-3641-2",
"refsource": "UBUNTU",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/3641-2/"
},
{
"name": "RHSA-2018:1524",
"refsource": "REDHAT",
"tags": [
"Third Party Advisory"
],
"url": "https://access.redhat.com/errata/RHSA-2018:1524"
},
{
"name": "RHSA-2018:1355",
"refsource": "REDHAT",
"tags": [
"Third Party Advisory"
],
"url": "https://access.redhat.com/errata/RHSA-2018:1355"
},
{
"name": "RHSA-2018:1348",
"refsource": "REDHAT",
"tags": [
"Third Party Advisory"
],
"url": "https://access.redhat.com/errata/RHSA-2018:1348"
},
{
"name": "RHSA-2018:1347",
"refsource": "REDHAT",
"tags": [
"Third Party Advisory"
],
"url": "https://access.redhat.com/errata/RHSA-2018:1347"
},
{
"name": "RHSA-2018:1345",
"refsource": "REDHAT",
"tags": [
"Third Party Advisory"
],
"url": "https://access.redhat.com/errata/RHSA-2018:1345"
},
{
"name": "RHSA-2018:1318",
"refsource": "REDHAT",
"tags": [
"Third Party Advisory"
],
"url": "https://access.redhat.com/errata/RHSA-2018:1318"
},
{
"name": "1040862",
"refsource": "SECTRACK",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://www.securitytracker.com/id/1040862"
},
{
"name": "104127",
"refsource": "BID",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://www.securityfocus.com/bid/104127"
},
{
"name": "USN-3641-1",
"refsource": "UBUNTU",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/3641-1/"
}
]
}
},
"impact": {
"baseMetricV2": {
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 4.6,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.0"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9
}
},
"lastModifiedDate": "2019-10-09T23:38Z",
"publishedDate": "2018-05-15T16:29Z"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
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.
Loading…
Loading…