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"vulnerable": true}, {"criteria": "cpe:2.3:a:opera:opera_browser:11.00:alpha:*:*:*:*:*:*", "matchCriteriaId": "5452C344-5237-428B-AAA9-EF2979F420E8", "vulnerable": true}, {"criteria": "cpe:2.3:a:opera:opera_browser:11.00:beta:*:*:*:*:*:*", "matchCriteriaId": "52A509DF-759B-466A-9D6E-4E4D559B0F8E", "vulnerable": true}, {"criteria": "cpe:2.3:a:opera:opera_browser:11.01:*:*:*:*:*:*:*", "matchCriteriaId": "CB95842D-6899-4ECD-B7F9-5CC62BE9D4AC", "vulnerable": true}, {"criteria": "cpe:2.3:a:opera:opera_browser:11.10:alpha:*:*:*:*:*:*", "matchCriteriaId": "5130616D-7AD9-4EC1-9A3B-FB5CCFFA5F61", "vulnerable": true}, {"criteria": "cpe:2.3:a:opera:opera_browser:11.10:beta:*:*:*:*:*:*", "matchCriteriaId": "52A36E55-80F8-40CD-A7DD-7FC291DCC3BC", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The Cascading Style Sheets (CSS) implementation in Opera before 11.11 does not properly handle the column-count property, which allows remote attackers to cause a denial of service (infinite repaint loop and application hang) via a web page, as demonstrated by an unspecified Wikipedia page."}, {"lang": "es", "value": "Las Hojas de Estilo en Cascada (CSS) en la aplicaci\u00f3n Opera anterior a v11.11 no controlan correctamente la propiedad column-count lo que permite a atacantes remotos provocar una denegaci\u00f3n de servicio (bucle infinito que acaba bloqueando la aplicaci\u00f3n) a trav\u00e9s de una p\u00e1gina web, como lo demuestra una p\u00e1gina no especificada de la Wikipedia."}], "id": "CVE-2011-2631", "lastModified": "2026-04-29T01:13:23.040", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2011-07-01T10:55:03.113", "references": [{"source": "cve@mitre.org", "url": "http://www.opera.com/docs/changelogs/mac/1111/"}, {"source": "cve@mitre.org", "url": "http://www.opera.com/docs/changelogs/unix/1111/"}, {"source": "cve@mitre.org", "url": "http://www.opera.com/docs/changelogs/windows/1111/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.opera.com/docs/changelogs/mac/1111/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.opera.com/docs/changelogs/unix/1111/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.opera.com/docs/changelogs/windows/1111/"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

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