CVE-2013-7423
Estado: ModificadaMedia (5)—
The send_dg function in resolv/res_send.c in GNU C Library (aka glibc or libc6) before 2.20 does not properly reuse file descriptors, which allows remote attackers to send DNS queries to unintended locations via a large number of requests that trigger a call to the getaddrinfo function.
CVSS
- Versión: 2.0
- Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N
- Puntuación base: 5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 5.81%
- Percentil entre todas las CVEs puntuadas: 93
- 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 (4)
CWE
- CWE-17
Referencias
- http://lists.opensuse.org/opensuse-updates/2015-02/msg00089.html
- http://packetstormsecurity.com/files/164014/Moxa-Command-Injection-Cross-Site-Scripting-Vulnerable-Software.html
- http://rhn.redhat.com/errata/RHSA-2015-0863.html
- http://seclists.org/fulldisclosure/2021/Sep/0
- http://www.openwall.com/lists/oss-security/2015/01/28/20
- http://www.securityfocus.com/bid/72844
- http://www.ubuntu.com/usn/USN-2519-1
- https://access.redhat.com/errata/RHSA-2016:1207
- https://github.com/golang/go/issues/6336
- https://security.gentoo.org/glsa/201602-02
- https://sourceware.org/bugzilla/show_bug.cgi?id=15946
- http://lists.opensuse.org/opensuse-updates/2015-02/msg00089.html
- http://packetstormsecurity.com/files/164014/Moxa-Command-Injection-Cross-Site-Scripting-Vulnerable-Software.html
- http://rhn.redhat.com/errata/RHSA-2015-0863.html
- http://seclists.org/fulldisclosure/2021/Sep/0
- http://www.openwall.com/lists/oss-security/2015/01/28/20
- http://www.securityfocus.com/bid/72844
- http://www.ubuntu.com/usn/USN-2519-1
- https://access.redhat.com/errata/RHSA-2016:1207
- https://github.com/golang/go/issues/6336
- https://security.gentoo.org/glsa/201602-02
- https://sourceware.org/bugzilla/show_bug.cgi?id=15946
JSON original (NVD)
Mostrar
{
"id": "CVE-2013-7423",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 5,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
"authentication": "NONE",
"integrityImpact": "PARTIAL",
"accessComplexity": "LOW",
"availabilityImpact": "NONE",
"confidentialityImpact": "NONE"
},
"acInsufInfo": false,
"impactScore": 2.9,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 10,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
]
},
"affected": [
{
"source": "cve@mitre.org",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
}
],
"published": "2015-02-24T15:59:00.050",
"references": [
{
"url": "http://lists.opensuse.org/opensuse-updates/2015-02/msg00089.html",
"tags": [
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "http://packetstormsecurity.com/files/164014/Moxa-Command-Injection-Cross-Site-Scripting-Vulnerable-Software.html",
"source": "cve@mitre.org"
},
{
"url": "http://rhn.redhat.com/errata/RHSA-2015-0863.html",
"source": "cve@mitre.org"
},
{
"url": "http://seclists.org/fulldisclosure/2021/Sep/0",
"source": "cve@mitre.org"
},
{
"url": "http://www.openwall.com/lists/oss-security/2015/01/28/20",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "http://www.securityfocus.com/bid/72844",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"source": "cve@mitre.org"
},
{
"url": "http://www.ubuntu.com/usn/USN-2519-1",
"tags": [
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://access.redhat.com/errata/RHSA-2016:1207",
"tags": [
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://github.com/golang/go/issues/6336",
"tags": [
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://security.gentoo.org/glsa/201602-02",
"tags": [
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://sourceware.org/bugzilla/show_bug.cgi?id=15946",
"tags": [
"Issue Tracking"
],
"source": "cve@mitre.org"
},
{
"url": "http://lists.opensuse.org/opensuse-updates/2015-02/msg00089.html",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://packetstormsecurity.com/files/164014/Moxa-Command-Injection-Cross-Site-Scripting-Vulnerable-Software.html",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://rhn.redhat.com/errata/RHSA-2015-0863.html",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://seclists.org/fulldisclosure/2021/Sep/0",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.openwall.com/lists/oss-security/2015/01/28/20",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.securityfocus.com/bid/72844",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.ubuntu.com/usn/USN-2519-1",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://access.redhat.com/errata/RHSA-2016:1207",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://github.com/golang/go/issues/6336",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://security.gentoo.org/glsa/201602-02",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://sourceware.org/bugzilla/show_bug.cgi?id=15946",
"tags": [
"Issue Tracking"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-17"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The send_dg function in resolv/res_send.c in GNU C Library (aka glibc or libc6) before 2.20 does not properly reuse file descriptors, which allows remote attackers to send DNS queries to unintended locations via a large number of requests that trigger a call to the getaddrinfo function."
},
{
"lang": "es",
"value": "La función send_dg en resolv/res_send.c en GNU C Library (también conocido como glibc o libc6) en versiones anteriores a 2.20 no reutiliza adecuadamente descriptores de fichero, lo que permite a atacantes remotos mandar consultas DNS a ubicaciones no intencionadas a través de un gran número de peticiones que desencadenan una llamada a la función getaddrinfo."
}
],
"lastModified": "2026-06-17T00:01:55.937",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:redhat:enterprise_linux_server_aus:6.5:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1F3BEFDB-5156-4E1C-80BB-8BE9FEAA7623"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:lts:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5D37DF0F-F863-45AC-853A-3E04F9FEC7CA"
},
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B6B7CAD7-9D4E-4FDB-88E3-1E583210A01F"
},
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B5A6F2F3-4894-4392-8296-3B8DD2679084"
},
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "49A63F39-30BE-443F-AF10-6245587D3359"
},
{
"criteria": "cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A10BC294-9196-425F-9FB0-B1625465B47F"
},
{
"criteria": "cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "03117DF1-3BEC-4B8D-AD63-DBBDB2126081"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "8768EA17-45CA-4B47-B9E6-D58D11C45B56",
"versionEndExcluding": "2.20"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "cve@mitre.org"
}