gsd-2018-10853
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
A flaw was found in the way Linux kernel KVM hypervisor before 4.18 emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check current privilege(CPL) level while emulating unprivileged instructions. An unprivileged guest user/process could use this flaw to potentially escalate privileges inside guest.
Aliases
Aliases
{ "GSD": { "alias": "CVE-2018-10853", "description": "A flaw was found in the way Linux kernel KVM hypervisor before 4.18 emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check current privilege(CPL) level while emulating unprivileged instructions. An unprivileged guest user/process could use this flaw to potentially escalate privileges inside guest.", "id": "GSD-2018-10853", "references": [ "https://www.suse.com/security/cve/CVE-2018-10853.html", "https://access.redhat.com/errata/RHSA-2020:0179", "https://access.redhat.com/errata/RHSA-2020:0103", "https://access.redhat.com/errata/RHSA-2020:0036", "https://access.redhat.com/errata/RHSA-2019:2043", "https://access.redhat.com/errata/RHSA-2019:2029", "https://ubuntu.com/security/CVE-2018-10853", "https://advisories.mageia.org/CVE-2018-10853.html", "https://linux.oracle.com/cve/CVE-2018-10853.html" ] }, "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2018-10853" ], "details": "A flaw was found in the way Linux kernel KVM hypervisor before 4.18 emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check current privilege(CPL) level while emulating unprivileged instructions. An unprivileged guest user/process could use this flaw to potentially escalate privileges inside guest.", "id": "GSD-2018-10853", "modified": "2023-12-13T01:22:41.736220Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "secalert@redhat.com", "ID": "CVE-2018-10853", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "kernel", "version": { "version_data": [ { "version_value": "4.18" } ] } } ] }, "vendor_name": "Linux" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "A flaw was found in the way Linux kernel KVM hypervisor before 4.18 emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check current privilege(CPL) level while emulating unprivileged instructions. An unprivileged guest user/process could use this flaw to potentially escalate privileges inside guest." } ] }, "impact": { "cvss": [ [ { "vectorString": "7/CVSS:3.0/AV:L/AC:H/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": "[debian-lts-announce] 20180714 [SECURITY] [DLA 1422-1] linux security update", "refsource": "MLIST", "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html" }, { "name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10853", "refsource": "CONFIRM", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10853" }, { "name": "USN-3777-1", "refsource": "UBUNTU", "url": "https://usn.ubuntu.com/3777-1/" }, { "name": "[debian-lts-announce] 20180715 [SECURITY] [DLA 1422-2] linux security update", "refsource": "MLIST", "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html" }, { "name": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=129a72a0d3c8e139a04512325384fe5ac119e74", "refsource": "CONFIRM", "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=129a72a0d3c8e139a04512325384fe5ac119e74" }, { "name": "[debian-lts-announce] 20180718 [SECURITY] [DLA 1423-1] linux-4.9 new package", "refsource": "MLIST", "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html" }, { "name": "USN-3777-2", "refsource": "UBUNTU", "url": "https://usn.ubuntu.com/3777-2/" }, { "name": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3c9fa24ca7c9c47605672916491f79e8ccacb9e6", "refsource": "CONFIRM", "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3c9fa24ca7c9c47605672916491f79e8ccacb9e6" }, { "name": "https://www.openwall.com/lists/oss-security/2018/09/02/1", "refsource": "MISC", "url": "https://www.openwall.com/lists/oss-security/2018/09/02/1" }, { "name": "openSUSE-SU-2019:1407", "refsource": "SUSE", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00043.html" }, { "name": "RHSA-2019:2043", "refsource": "REDHAT", "url": "https://access.redhat.com/errata/RHSA-2019:2043" }, { "name": "RHSA-2019:2029", "refsource": "REDHAT", "url": "https://access.redhat.com/errata/RHSA-2019:2029" }, { "name": "RHSA-2020:0036", "refsource": "REDHAT", "url": "https://access.redhat.com/errata/RHSA-2020:0036" }, { "name": "RHSA-2020:0103", "refsource": "REDHAT", "url": "https://access.redhat.com/errata/RHSA-2020:0103" }, { "name": "RHSA-2020:0179", "refsource": "REDHAT", "url": "https://access.redhat.com/errata/RHSA-2020:0179" } ] } }, "nvd.nist.gov": { "configurations": { "CVE_data_version": "4.0", "nodes": [ { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*", "cpe_name": [], "vulnerable": true } ], "operator": "OR" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true } ], "operator": "OR" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.18", "vulnerable": true } ], "operator": "OR" } ] }, "cve": { "CVE_data_meta": { "ASSIGNER": "secalert@redhat.com", "ID": "CVE-2018-10853" }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "en", "value": "A flaw was found in the way Linux kernel KVM hypervisor before 4.18 emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check current privilege(CPL) level while emulating unprivileged instructions. An unprivileged guest user/process could use this flaw to potentially escalate privileges inside guest." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "en", "value": "CWE-269" } ] } ] }, "references": { "reference_data": [ { "name": "https://www.openwall.com/lists/oss-security/2018/09/02/1", "refsource": "MISC", "tags": [ "Mailing List", "Patch", "Third Party Advisory" ], "url": "https://www.openwall.com/lists/oss-security/2018/09/02/1" }, { "name": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3c9fa24ca7c9c47605672916491f79e8ccacb9e6", "refsource": "CONFIRM", "tags": [ "Patch", "Vendor Advisory" ], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3c9fa24ca7c9c47605672916491f79e8ccacb9e6" }, { "name": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=129a72a0d3c8e139a04512325384fe5ac119e74", "refsource": "CONFIRM", "tags": [ "Patch", "Vendor Advisory" ], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=129a72a0d3c8e139a04512325384fe5ac119e74" }, { "name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10853", "refsource": "CONFIRM", "tags": [ "Issue Tracking", "Patch", "Third Party Advisory" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10853" }, { "name": "[debian-lts-announce] 20180718 [SECURITY] [DLA 1423-1] linux-4.9 new package", "refsource": "MLIST", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html" }, { "name": "[debian-lts-announce] 20180715 [SECURITY] [DLA 1422-2] linux security update", "refsource": "MLIST", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html" }, { "name": "[debian-lts-announce] 20180714 [SECURITY] [DLA 1422-1] linux security update", "refsource": "MLIST", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html" }, { "name": "USN-3777-2", "refsource": "UBUNTU", "tags": [ "Third Party Advisory" ], "url": "https://usn.ubuntu.com/3777-2/" }, { "name": "USN-3777-1", "refsource": "UBUNTU", "tags": [ "Third Party Advisory" ], "url": "https://usn.ubuntu.com/3777-1/" }, { "name": "openSUSE-SU-2019:1407", "refsource": "SUSE", "tags": [], "url": "http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00043.html" }, { "name": "RHSA-2019:2043", "refsource": "REDHAT", "tags": [], "url": "https://access.redhat.com/errata/RHSA-2019:2043" }, { "name": "RHSA-2019:2029", "refsource": "REDHAT", "tags": [], "url": "https://access.redhat.com/errata/RHSA-2019:2029" }, { "name": "RHSA-2020:0036", "refsource": "REDHAT", "tags": [], "url": "https://access.redhat.com/errata/RHSA-2020:0036" }, { "name": "RHSA-2020:0103", "refsource": "REDHAT", "tags": [], "url": "https://access.redhat.com/errata/RHSA-2020:0103" }, { "name": "RHSA-2020:0179", "refsource": "REDHAT", "tags": [], "url": "https://access.redhat.com/errata/RHSA-2020:0179" } ] } }, "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": "2019-10-03T00:03Z", "publishedDate": "2018-09-11T14:29Z" } } }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.