CVE-2010-2524
Estado: ModificadaAlta (7.8)—
The DNS resolution functionality in the CIFS implementation in the Linux kernel before 2.6.35, when CONFIG_CIFS_DFS_UPCALL is enabled, relies on a user's keyring for the dns_resolver upcall in the cifs.upcall userspace helper, which allows local users to spoof the results of DNS queries and perform arbitrary CIFS mounts via vectors involving an add_key call, related to a "cache stuffing" issue and MS-DFS referrals.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 7.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.42%
- Percentil entre todas las CVEs puntuadas: 35
- Fecha de la puntuación: 7/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (5)
CWE
- NVD-CWE-noinfo
Referencias
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4c0c03ca54f72fdd5912516ad0a23ec5cf01bda7
- http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00004.html
- http://marc.info/?l=oss-security&m=128072090331700&w=2
- http://marc.info/?l=oss-security&m=128078387328921&w=2
- http://marc.info/?l=oss-security&m=128080755321157&w=2
- http://secunia.com/advisories/43315
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:172
- http://www.redhat.com/support/errata/RHSA-2010-0610.html
- http://www.securityfocus.com/archive/1/516397/100/0/threaded
- http://www.ubuntu.com/usn/USN-1000-1
- http://www.vmware.com/security/advisories/VMSA-2011-0003.html
- https://bugzilla.redhat.com/show_bug.cgi?id=612166
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4c0c03ca54f72fdd5912516ad0a23ec5cf01bda7
- http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00004.html
- http://marc.info/?l=oss-security&m=128072090331700&w=2
- http://marc.info/?l=oss-security&m=128078387328921&w=2
- http://marc.info/?l=oss-security&m=128080755321157&w=2
- http://secunia.com/advisories/43315
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:172
- http://www.redhat.com/support/errata/RHSA-2010-0610.html
- http://www.securityfocus.com/archive/1/516397/100/0/threaded
- http://www.ubuntu.com/usn/USN-1000-1
- http://www.vmware.com/security/advisories/VMSA-2011-0003.html
- https://bugzilla.redhat.com/show_bug.cgi?id=612166
JSON original (NVD)
Mostrar
{
"id": "CVE-2010-2524",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 4.6,
"accessVector": "LOCAL",
"vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
"authentication": "NONE",
"integrityImpact": "PARTIAL",
"accessComplexity": "LOW",
"availabilityImpact": "PARTIAL",
"confidentialityImpact": "PARTIAL"
},
"acInsufInfo": false,
"impactScore": 6.4,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 3.9,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.8,
"attackVector": "LOCAL",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 1.8
}
]
},
"affected": [
{
"source": "secalert@redhat.com",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
}
],
"published": "2010-09-08T20:00:02.823",
"references": [
{
"url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4c0c03ca54f72fdd5912516ad0a23ec5cf01bda7",
"source": "secalert@redhat.com"
},
{
"url": "http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00004.html",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "secalert@redhat.com"
},
{
"url": "http://marc.info/?l=oss-security&m=128072090331700&w=2",
"tags": [
"Mailing List",
"Patch",
"Third Party Advisory"
],
"source": "secalert@redhat.com"
},
{
"url": "http://marc.info/?l=oss-security&m=128078387328921&w=2",
"tags": [
"Mailing List",
"Patch",
"Third Party Advisory"
],
"source": "secalert@redhat.com"
},
{
"url": "http://marc.info/?l=oss-security&m=128080755321157&w=2",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "secalert@redhat.com"
},
{
"url": "http://secunia.com/advisories/43315",
"tags": [
"Broken Link"
],
"source": "secalert@redhat.com"
},
{
"url": "http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35",
"tags": [
"Broken Link"
],
"source": "secalert@redhat.com"
},
{
"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2010:172",
"tags": [
"Broken Link"
],
"source": "secalert@redhat.com"
},
{
"url": "http://www.redhat.com/support/errata/RHSA-2010-0610.html",
"tags": [
"Broken Link"
],
"source": "secalert@redhat.com"
},
{
"url": "http://www.securityfocus.com/archive/1/516397/100/0/threaded",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"source": "secalert@redhat.com"
},
{
"url": "http://www.ubuntu.com/usn/USN-1000-1",
"tags": [
"Third Party Advisory"
],
"source": "secalert@redhat.com"
},
{
"url": "http://www.vmware.com/security/advisories/VMSA-2011-0003.html",
"tags": [
"Patch",
"Third Party Advisory"
],
"source": "secalert@redhat.com"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=612166",
"tags": [
"Issue Tracking",
"Patch",
"Third Party Advisory"
],
"source": "secalert@redhat.com"
},
{
"url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4c0c03ca54f72fdd5912516ad0a23ec5cf01bda7",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00004.html",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://marc.info/?l=oss-security&m=128072090331700&w=2",
"tags": [
"Mailing List",
"Patch",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://marc.info/?l=oss-security&m=128078387328921&w=2",
"tags": [
"Mailing List",
"Patch",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://marc.info/?l=oss-security&m=128080755321157&w=2",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://secunia.com/advisories/43315",
"tags": [
"Broken Link"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35",
"tags": [
"Broken Link"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2010:172",
"tags": [
"Broken Link"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.redhat.com/support/errata/RHSA-2010-0610.html",
"tags": [
"Broken Link"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.securityfocus.com/archive/1/516397/100/0/threaded",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.ubuntu.com/usn/USN-1000-1",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.vmware.com/security/advisories/VMSA-2011-0003.html",
"tags": [
"Patch",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=612166",
"tags": [
"Issue Tracking",
"Patch",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The DNS resolution functionality in the CIFS implementation in the Linux kernel before 2.6.35, when CONFIG_CIFS_DFS_UPCALL is enabled, relies on a user's keyring for the dns_resolver upcall in the cifs.upcall userspace helper, which allows local users to spoof the results of DNS queries and perform arbitrary CIFS mounts via vectors involving an add_key call, related to a \"cache stuffing\" issue and MS-DFS referrals."
},
{
"lang": "es",
"value": "La funcionalidad de resolución DNS en el kernel de Linux anterior a v2.6.35, cuando CONFIG_CIFS_DFS_UPCALL está activado, cuenta con el \"keyring\" de usuario para la \"upcall\" dns_resolver en el espacio de usuario cifs.upcall, lo que permite a usuarios locales secuestrar los resultados de las consultas DNS y realizar montajes (mounts) CIFS de su elección a través de vectores que involucran una llamada add_key, relacionado con un cuestión de relleno de caché (stuffing) y referencias MS-DFS."
}
],
"lastModified": "2026-06-16T23:20:55.073",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "ABBE25DF-453B-47E6-A6ED-6984E7576F69",
"versionEndExcluding": "2.6.35"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:vmware:esx:4.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "BC337BB7-9A45-4406-A783-851F279130EE"
},
{
"criteria": "cpe:2.3:o:vmware:esx:4.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0B6BA46F-4E8C-4B2A-AE92-81B9F1B4D56C"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "454A5D17-B171-4F1F-9E0B-F18D1E5CA9FD"
},
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C0507E91-567A-41D6-A7E5-5088A39F75FB"
},
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:9.04:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A5D026D0-EF78-438D-BEDD-FC8571F3ACEB"
},
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:9.10:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A2BCB73E-27BB-4878-AD9C-90C4F20C25A0"
},
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:*",
"vulnerable": true,
"matchCriteriaId": "01EDA41C-6B2E-49AF-B503-EB3882265C11"
},
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:10.10:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "87614B58-24AB-49FB-9C84-E8DDBA16353B"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:suse:suse_linux_enterprise_desktop:11:sp1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "10A193CD-12B9-4236-8A2C-E8CEAE592952"
},
{
"criteria": "cpe:2.3:o:suse:suse_linux_enterprise_server:11:sp1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F691F4E7-2FF1-4EFB-B21F-E510049A9940"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "secalert@redhat.com"
}