CVE-2017-8284
Vulnerability from cvelistv5
Published
2017-04-26 14:00
Modified
2024-09-16 18:03
Severity ?
EPSS score ?
Summary
The disas_insn function in target/i386/translate.c in QEMU before 2.9.0, when TCG mode without hardware acceleration is used, does not limit the instruction size, which allows local users to gain privileges by creating a modified basic block that injects code into a setuid program, as demonstrated by procmail. NOTE: the vendor has stated "this bug does not violate any security guarantees QEMU makes.
References
▼ | URL | Tags | |
---|---|---|---|
cve@mitre.org | https://bugs.chromium.org/p/project-zero/issues/detail?id=1122 | Issue Tracking, Third Party Advisory | |
cve@mitre.org | https://github.com/qemu/qemu/commit/30663fd26c0307e414622c7a8607fbc04f92ec14 | Issue Tracking, Patch, Third Party Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://bugs.chromium.org/p/project-zero/issues/detail?id=1122 | Issue Tracking, Third Party Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://github.com/qemu/qemu/commit/30663fd26c0307e414622c7a8607fbc04f92ec14 | Issue Tracking, Patch, Third Party Advisory |
{ "containers": { "adp": [ { "providerMetadata": { "dateUpdated": "2024-08-05T16:34:22.606Z", "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE" }, "references": [ { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://bugs.chromium.org/p/project-zero/issues/detail?id=1122" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://github.com/qemu/qemu/commit/30663fd26c0307e414622c7a8607fbc04f92ec14" } ], "title": "CVE Program Container" } ], "cna": { "affected": [ { "product": "n/a", "vendor": "n/a", "versions": [ { "status": "affected", "version": "n/a" } ] } ], "descriptions": [ { "lang": "en", "value": "The disas_insn function in target/i386/translate.c in QEMU before 2.9.0, when TCG mode without hardware acceleration is used, does not limit the instruction size, which allows local users to gain privileges by creating a modified basic block that injects code into a setuid program, as demonstrated by procmail. NOTE: the vendor has stated \"this bug does not violate any security guarantees QEMU makes." } ], "problemTypes": [ { "descriptions": [ { "description": "n/a", "lang": "en", "type": "text" } ] } ], "providerMetadata": { "dateUpdated": "2017-04-26T14:00:00Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre" }, "references": [ { "tags": [ "x_refsource_MISC" ], "url": "https://bugs.chromium.org/p/project-zero/issues/detail?id=1122" }, { "tags": [ "x_refsource_MISC" ], "url": "https://github.com/qemu/qemu/commit/30663fd26c0307e414622c7a8607fbc04f92ec14" } ], "tags": [ "disputed" ], "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "cve@mitre.org", "ID": "CVE-2017-8284", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "n/a", "version": { "version_data": [ { "version_value": "n/a" } ] } } ] }, "vendor_name": "n/a" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "** DISPUTED ** The disas_insn function in target/i386/translate.c in QEMU before 2.9.0, when TCG mode without hardware acceleration is used, does not limit the instruction size, which allows local users to gain privileges by creating a modified basic block that injects code into a setuid program, as demonstrated by procmail. NOTE: the vendor has stated \"this bug does not violate any security guarantees QEMU makes.\"" } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "name": "https://bugs.chromium.org/p/project-zero/issues/detail?id=1122", "refsource": "MISC", "url": "https://bugs.chromium.org/p/project-zero/issues/detail?id=1122" }, { "name": "https://github.com/qemu/qemu/commit/30663fd26c0307e414622c7a8607fbc04f92ec14", "refsource": "MISC", "url": "https://github.com/qemu/qemu/commit/30663fd26c0307e414622c7a8607fbc04f92ec14" } ] } } } }, "cveMetadata": { "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2017-8284", "datePublished": "2017-04-26T14:00:00Z", "dateReserved": "2017-04-26T00:00:00Z", "dateUpdated": "2024-09-16T18:03:56.866Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2017-8284\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2017-04-26T14:59:00.270\",\"lastModified\":\"2024-11-21T03:33:41.913\",\"vulnStatus\":\"Modified\",\"cveTags\":[{\"sourceIdentifier\":\"cve@mitre.org\",\"tags\":[\"disputed\"]}],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The disas_insn function in target/i386/translate.c in QEMU before 2.9.0, when TCG mode without hardware acceleration is used, does not limit the instruction size, which allows local users to gain privileges by creating a modified basic block that injects code into a setuid program, as demonstrated by procmail. NOTE: the vendor has stated \\\"this bug does not violate any security guarantees QEMU makes.\"},{\"lang\":\"es\",\"value\":\"** EN DISPUTA ** La funci\u00f3n disas_insn en target / i386 / translate.c en QEMU para las versiones anteriores a la 2.9.0, cuando se utiliza el modo TCG sin aceleraci\u00f3n de hardware, no limita el tama\u00f1o de instrucci\u00f3n, lo que permite a los usuarios locales obtener privilegios creando un bloque b\u00e1sico modificado que inyecta c\u00f3digo en un programa setuid, como lo demuestra procmail. NOTA: el proveedor ha declarado que \\\"este error no viola las garant\u00edas de seguridad de QEMU.\\\"\"}],\"metrics\":{\"cvssMetricV30\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.0,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.0,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:M/Au:N/C:C/I:C/A:C\",\"baseScore\":6.9,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"COMPLETE\",\"integrityImpact\":\"COMPLETE\",\"availabilityImpact\":\"COMPLETE\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":3.4,\"impactScore\":10.0,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-94\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"2.8.1.1\",\"matchCriteriaId\":\"A965C2D1-C447-4324-95A4-27285ECF8909\"}]}]}],\"references\":[{\"url\":\"https://bugs.chromium.org/p/project-zero/issues/detail?id=1122\",\"source\":\"cve@mitre.org\",\"tags\":[\"Issue Tracking\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/qemu/qemu/commit/30663fd26c0307e414622c7a8607fbc04f92ec14\",\"source\":\"cve@mitre.org\",\"tags\":[\"Issue Tracking\",\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://bugs.chromium.org/p/project-zero/issues/detail?id=1122\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/qemu/qemu/commit/30663fd26c0307e414622c7a8607fbc04f92ec14\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\",\"Patch\",\"Third Party Advisory\"]}]}}" } }
Loading…
Loading…
Sightings
Author | Source | Type | Date |
---|
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.