gsd-2016-9921
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
Quick emulator (Qemu) built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to a divide by zero issue. It could occur while copying VGA data when cirrus graphics mode was set to be VGA. A privileged user inside guest could use this flaw to crash the Qemu process instance on the host, resulting in DoS.
Aliases
Aliases
{ "GSD": { "alias": "CVE-2016-9921", "description": "Quick emulator (Qemu) built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to a divide by zero issue. It could occur while copying VGA data when cirrus graphics mode was set to be VGA. A privileged user inside guest could use this flaw to crash the Qemu process instance on the host, resulting in DoS.", "id": "GSD-2016-9921", "references": [ "https://www.suse.com/security/cve/CVE-2016-9921.html", "https://access.redhat.com/errata/RHSA-2017:2408", "https://access.redhat.com/errata/RHSA-2017:2392", "https://ubuntu.com/security/CVE-2016-9921" ] }, "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2016-9921" ], "details": "Quick emulator (Qemu) built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to a divide by zero issue. It could occur while copying VGA data when cirrus graphics mode was set to be VGA. A privileged user inside guest could use this flaw to crash the Qemu process instance on the host, resulting in DoS.", "id": "GSD-2016-9921", "modified": "2023-12-13T01:21:21.429370Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "secalert@redhat.com", "ID": "CVE-2016-9921", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "n/a", "version": { "version_data": [ { "version_affected": "=", "version_value": "n/a" } ] } } ] }, "vendor_name": "n/a" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "Quick emulator (Qemu) built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to a divide by zero issue. It could occur while copying VGA data when cirrus graphics mode was set to be VGA. A privileged user inside guest could use this flaw to crash the Qemu process instance on the host, resulting in DoS." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "name": "http://www.openwall.com/lists/oss-security/2016/12/09/1", "refsource": "MISC", "url": "http://www.openwall.com/lists/oss-security/2016/12/09/1" }, { "name": "http://www.securityfocus.com/bid/94803", "refsource": "MISC", "url": "http://www.securityfocus.com/bid/94803" }, { "name": "https://access.redhat.com/errata/RHSA-2017:2392", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2017:2392" }, { "name": "https://access.redhat.com/errata/RHSA-2017:2408", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2017:2408" }, { "name": "https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html", "refsource": "MISC", "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html" }, { "name": "https://security.gentoo.org/glsa/201701-49", "refsource": "MISC", "url": "https://security.gentoo.org/glsa/201701-49" } ] } }, "nvd.nist.gov": { "configurations": { "CVE_data_version": "4.0", "nodes": [ { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndIncluding": "2.7.1", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:a:qemu:qemu:2.8.0:rc0:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:a:qemu:qemu:2.8.0:rc1:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:a:qemu:qemu:2.8.0:rc2:*:*:*:*:*:*", "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:a:redhat:openstack:7.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:a:redhat:openstack:6.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:a:redhat:openstack:9:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:a:redhat:openstack:8:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:a:redhat:openstack:11:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true } ], "operator": "OR" }, { "children": [ { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true } ], "operator": "OR" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false } ], "operator": "OR" } ], "cpe_match": [], "operator": "AND" } ] }, "cve": { "CVE_data_meta": { "ASSIGNER": "secalert@redhat.com", "ID": "CVE-2016-9921" }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "en", "value": "Quick emulator (Qemu) built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to a divide by zero issue. It could occur while copying VGA data when cirrus graphics mode was set to be VGA. A privileged user inside guest could use this flaw to crash the Qemu process instance on the host, resulting in DoS." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "en", "value": "CWE-369" } ] } ] }, "references": { "reference_data": [ { "name": "94803", "refsource": "BID", "tags": [ "Third Party Advisory", "VDB Entry" ], "url": "http://www.securityfocus.com/bid/94803" }, { "name": "[oss-security] 20161209 Re: CVE request Qemu: display: cirrus_vga: a divide by zero in cirrus_do_copy", "refsource": "MLIST", "tags": [ "Mailing List", "Patch", "Third Party Advisory" ], "url": "http://www.openwall.com/lists/oss-security/2016/12/09/1" }, { "name": "GLSA-201701-49", "refsource": "GENTOO", "tags": [ "Third Party Advisory" ], "url": "https://security.gentoo.org/glsa/201701-49" }, { "name": "RHSA-2017:2408", "refsource": "REDHAT", "tags": [ "Third Party Advisory" ], "url": "https://access.redhat.com/errata/RHSA-2017:2408" }, { "name": "RHSA-2017:2392", "refsource": "REDHAT", "tags": [ "Third Party Advisory" ], "url": "https://access.redhat.com/errata/RHSA-2017:2392" }, { "name": "[debian-lts-announce] 20180906 [SECURITY] [DLA 1497-1] qemu security update", "refsource": "MLIST", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html" } ] } }, "impact": { "baseMetricV2": { "acInsufInfo": false, "cvssV2": { "accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 2.1, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0" }, "exploitabilityScore": 3.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "severity": "LOW", "userInteractionRequired": false }, "baseMetricV3": { "cvssV3": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H", "version": "3.1" }, "exploitabilityScore": 2.0, "impactScore": 4.0 } }, "lastModifiedDate": "2023-02-13T04:50Z", "publishedDate": "2016-12-23T22:59Z" } } }
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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.