CVE-2012-2100

{"id": "CVE-2012-2100", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.1, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "MEDIUM", "availabilityImpact": "COMPLETE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}]}, "published": "2012-07-03T16:40:32.067", "references": [{"url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d50f2ab6f050311dbf7b8f5501b25f0bf64a439b", "source": "secalert@redhat.com"}, {"url": "http://rhn.redhat.com/errata/RHSA-2012-1445.html", "source": "secalert@redhat.com"}, {"url": "http://rhn.redhat.com/errata/RHSA-2012-1580.html", "source": "secalert@redhat.com"}, {"url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2", "source": "secalert@redhat.com"}, {"url": "http://www.openwall.com/lists/oss-security/2012/04/12/11", "source": "secalert@redhat.com"}, {"url": "http://www.securityfocus.com/bid/53414", "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=809687", "source": "secalert@redhat.com"}, {"url": "https://github.com/torvalds/linux/commit/d50f2ab6f050311dbf7b8f5501b25f0bf64a439b", "source": "secalert@redhat.com"}, {"url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d50f2ab6f050311dbf7b8f5501b25f0bf64a439b", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://rhn.redhat.com/errata/RHSA-2012-1445.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://rhn.redhat.com/errata/RHSA-2012-1580.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.openwall.com/lists/oss-security/2012/04/12/11", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.securityfocus.com/bid/53414", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=809687", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/torvalds/linux/commit/d50f2ab6f050311dbf7b8f5501b25f0bf64a439b", "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-189"}]}], "descriptions": [{"lang": "en", "value": "The ext4_fill_flex_info function in fs/ext4/super.c in the Linux kernel before 3.2.2, on the x86 platform and unspecified other platforms, allows user-assisted remote attackers to trigger inconsistent filesystem-groups data and possibly cause a denial of service via a malformed ext4 filesystem containing a super block with a large FLEX_BG group size (aka s_log_groups_per_flex value). NOTE: this vulnerability exists because of an incomplete fix for CVE-2009-4307."}, {"lang": "es", "value": "La funci\u00f3n ext4_fill_flex_info en fs/ext4/super.c en el kernel de Linux anterior a v3.2.2, en la plataforma x86 permite a atacantes remotos asistidos por el usuario activar el sistema de archivos incompatibles con los grupos de datos y posiblemente causar una denegaci\u00f3n de servicio a trav\u00e9s de un formato incorrecto mediante un sistema de archivos ext4 que contiene un bloque con un tama\u00f1o de grupo FLEX_BG de gran tama\u00f1o (tambi\u00e9n conocido como valor de s_log_groups_per_flex). NOTA: esta vulnerabilidad existe debido a un parche incompleto para CVE-2009-4307."}], "lastModified": "2025-04-11T00:51:21.963", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:x86:*", "vulnerable": true, "matchCriteriaId": "5E08D2B1-601B-4184-8C01-3F7BB9258146", "versionEndIncluding": "3.2.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.2:*:*:*:*:*:x86:*", "vulnerable": true, "matchCriteriaId": "7D47A395-821D-4BFF-996E-E849D9A40217"}], "operator": "OR"}]}], "sourceIdentifier": "secalert@redhat.com"}