{ "id": "CVE-2023-4911", "sourceIdentifier": "secalert@redhat.com", "published": "2023-10-03T18:15:10.463", "lastModified": "2024-09-17T19:46:45.837", "vulnStatus": "Analyzed", "cveTags": [], "cisaExploitAdd": "2023-11-21", "cisaActionDue": "2023-12-12", "cisaRequiredAction": "Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.", "cisaVulnerabilityName": "GNU C Library Buffer Overflow Vulnerability", "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": "nvd@nist.gov", "type": "Primary", "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 }, { "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", 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Party Advisory" ] }, { "url": "https://access.redhat.com/security/cve/CVE-2023-4911", "source": "secalert@redhat.com", "tags": [ "Mitigation", "Third Party Advisory" ] }, { "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2238352", "source": "secalert@redhat.com", "tags": [ "Issue Tracking", "Patch", "Third Party Advisory" ] }, { "url": "https://www.qualys.com/2023/10/03/cve-2023-4911/looney-tunables-local-privilege-escalation-glibc-ld-so.txt", "source": "secalert@redhat.com", "tags": [ "Exploit", "Third Party Advisory" ] }, { "url": "https://www.qualys.com/cve-2023-4911/", "source": "secalert@redhat.com", "tags": [ "Third Party Advisory" ] } ] }