2023-10-04 20:00:30 +00:00

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{
"id": "CVE-2023-4911",
"sourceIdentifier": "secalert@redhat.com",
"published": "2023-10-03T18:15:10.463",
"lastModified": "2023-10-04T19:15:10.700",
"vulnStatus": "Awaiting Analysis",
"descriptions": [
{
"lang": "en",
"value": "A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted GLIBC_TUNABLES environment variables when launching binaries with SUID permission to execute code with elevated privileges."
},
{
"lang": "es",
"value": "Se descubri\u00f3 un desbordamiento del b\u00fafer en el cargador din\u00e1mico ld.so de la librer\u00eda GNU C mientras se procesaba la variable de entorno GLIBC_TUNABLES. Este problema podr\u00eda permitir que un atacante local utilice variables de entorno GLIBC_TUNABLES manipuladas con fines malintencionados al iniciar archivos binarios con permiso SUID para ejecutar c\u00f3digo con privilegios elevados."
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "secalert@redhat.com",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9
}
]
},
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2023/10/03/2",
"source": "secalert@redhat.com"
},
{
"url": "http://www.openwall.com/lists/oss-security/2023/10/03/3",
"source": "secalert@redhat.com"
},
{
"url": "https://access.redhat.com/security/cve/CVE-2023-4911",
"source": "secalert@redhat.com"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2238352",
"source": "secalert@redhat.com"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4DBUQRRPB47TC3NJOUIBVWUGFHBJAFDL/",
"source": "secalert@redhat.com"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DFG4P76UHHZEWQ26FWBXG76N2QLKKPZA/",
"source": "secalert@redhat.com"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDAQWHTSVOCOZ5K6KPIWKRT3JX4RTZUR/",
"source": "secalert@redhat.com"
},
{
"url": "https://security.gentoo.org/glsa/202310-03",
"source": "secalert@redhat.com"
},
{
"url": "https://www.debian.org/security/2023/dsa-5514",
"source": "secalert@redhat.com"
},
{
"url": "https://www.qualys.com/2023/10/03/cve-2023-4911/looney-tunables-local-privilege-escalation-glibc-ld-so.txt",
"source": "secalert@redhat.com"
},
{
"url": "https://www.qualys.com/cve-2023-4911/",
"source": "secalert@redhat.com"
}
]
}