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servicio (ca\u00edda) o posiblemente ejecutar c\u00f3digo arbitrario a trav\u00e9s de una respuesta DNS manipulada que desencadenan una llamada a la funci\u00f3n getaddrinfo con la familia de direcciones AF_UNSPEC o AF_INET6, en relaci\u00f3n con la ejecuci\u00f3n de \"consultas duales A/AAAA DNS\" y el m\u00f3dulo libnss_dns.so.2 NSS."}], "id": "CVE-2015-7547", "lastModified": "2023-02-12T23:15:36.457", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 6.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 2.2, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2016-02-18T21:59:00.120", "references": [{"source": "secalert@redhat.com", "url": "http://fortiguard.com/advisory/glibc-getaddrinfo-stack-overflow"}, {"source": "secalert@redhat.com", "url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177404.html"}, {"source": "secalert@redhat.com", "url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177412.html"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.html"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00037.html"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00038.html"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00039.html"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00042.html"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00043.html"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00044.html"}, {"source": "secalert@redhat.com", "url": "http://marc.info/?l=bugtraq&m=145596041017029&w=2"}, {"source": "secalert@redhat.com", "url": "http://marc.info/?l=bugtraq&m=145672440608228&w=2"}, {"source": "secalert@redhat.com", "url": "http://marc.info/?l=bugtraq&m=145690841819314&w=2"}, {"source": "secalert@redhat.com", "url": "http://marc.info/?l=bugtraq&m=145857691004892&w=2"}, {"source": "secalert@redhat.com", "url": "http://marc.info/?l=bugtraq&m=146161017210491&w=2"}, {"source": "secalert@redhat.com", "url": "http://packetstormsecurity.com/files/135802/glibc-getaddrinfo-Stack-Based-Buffer-Overflow.html"}, {"source": "secalert@redhat.com", "url": "http://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.html"}, {"source": "secalert@redhat.com", "url": "http://packetstormsecurity.com/files/164014/Moxa-Command-Injection-Cross-Site-Scripting-Vulnerable-Software.html"}, {"source": "secalert@redhat.com", "url": "http://packetstormsecurity.com/files/167552/Nexans-FTTO-GigaSwitch-Outdated-Components-Hardcoded-Backdoor.html"}, {"source": "secalert@redhat.com", "url": "http://rhn.redhat.com/errata/RHSA-2016-0175.html"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "http://rhn.redhat.com/errata/RHSA-2016-0176.html"}, {"source": "secalert@redhat.com", "url": "http://rhn.redhat.com/errata/RHSA-2016-0225.html"}, {"source": "secalert@redhat.com", "url": "http://rhn.redhat.com/errata/RHSA-2016-0277.html"}, {"source": "secalert@redhat.com", "url": "http://seclists.org/fulldisclosure/2019/Sep/7"}, {"source": "secalert@redhat.com", "url": "http://seclists.org/fulldisclosure/2021/Sep/0"}, {"source": "secalert@redhat.com", "url": "http://seclists.org/fulldisclosure/2022/Jun/36"}, {"source": "secalert@redhat.com", "url": "http://support.citrix.com/article/CTX206991"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "http://ubuntu.com/usn/usn-2900-1"}, {"source": "secalert@redhat.com", "url": "http://www.debian.org/security/2016/dsa-3480"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "http://www.debian.org/security/2016/dsa-3481"}, {"source": "secalert@redhat.com", "url": "http://www.fortiguard.com/advisory/glibc-getaddrinfo-stack-overflow"}, {"source": "secalert@redhat.com", "url": "http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160304-01-glibc-en"}, {"source": "secalert@redhat.com", "tags": ["Patch", "Third Party Advisory"], "url": "http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html"}, {"source": "secalert@redhat.com", "url": "http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html"}, {"source": "secalert@redhat.com", "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html"}, {"source": "secalert@redhat.com", "url": "http://www.securityfocus.com/bid/83265"}, {"source": "secalert@redhat.com", "url": "http://www.securitytracker.com/id/1035020"}, {"source": "secalert@redhat.com", "url": "http://www.vmware.com/security/advisories/VMSA-2016-0002.html"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/articles/2161461"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://blogs.sophos.com/2016/02/24/utm-up2date-9-355-released/"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://blogs.sophos.com/2016/02/29/utm-up2date-9-319-released/"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://bto.bluecoat.com/security-advisory/sa114"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1293532"}, {"source": "secalert@redhat.com", "url": 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{"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/201602-02"}, {"source": "secalert@redhat.com", "url": "https://security.netapp.com/advisory/ntap-20160217-0002/"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking"], "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=18665"}, {"source": "secalert@redhat.com", "tags": ["Mailing List", "Vendor Advisory"], "url": "https://sourceware.org/ml/libc-alpha/2016-02/msg00416.html"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://support.f5.com/kb/en-us/solutions/public/k/47/sol47098834.html"}, {"source": "secalert@redhat.com", "url": "https://support.lenovo.com/us/en/product_security/len_5450"}, {"source": "secalert@redhat.com", "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/1255-security-advisory-17"}, {"source": "secalert@redhat.com", "url": "https://www.exploit-db.com/exploits/39454/"}, {"source": "secalert@redhat.com", "url": "https://www.exploit-db.com/exploits/40339/"}, {"source": "secalert@redhat.com", "url": "https://www.kb.cert.org/vuls/id/457759"}, {"source": "secalert@redhat.com", "url": "https://www.tenable.com/security/research/tra-2017-08"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "This issue was discovered by Google Security Team and Red Hat.", "affected_release": [{"advisory": "RHSA-2016:0175", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "glibc-0:2.12-1.166.el6_7.7", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2016-02-16T00:00:00Z"}, {"advisory": "RHSA-2016:0225", "cpe": "cpe:/o:redhat:rhel_mission_critical:6.2", "package": "glibc-0:2.12-1.47.el6_2.17", "product_name": "Red Hat Enterprise Linux 6.2 Advanced Update Support", "release_date": "2016-02-16T00:00:00Z"}, {"advisory": "RHSA-2016:0225", "cpe": "cpe:/o:redhat:rhel_aus:6.4", "package": "glibc-0:2.12-1.107.el6_4.9", "product_name": "Red Hat Enterprise Linux 6.4 Advanced Update Support", "release_date": "2016-02-16T00:00:00Z"}, {"advisory": "RHSA-2016:0225", "cpe": "cpe:/o:redhat:rhel_aus:6.5", "package": "glibc-0:2.12-1.132.el6_5.7", "product_name": "Red Hat Enterprise Linux 6.5 Advanced Update Support", "release_date": "2016-02-16T00:00:00Z"}, {"advisory": "RHSA-2016:0225", "cpe": "cpe:/o:redhat:rhel_eus:6.6", "package": "glibc-0:2.12-1.149.el6_6.11", "product_name": "Red Hat Enterprise Linux 6.6 Extended Update Support", "release_date": "2016-02-16T00:00:00Z"}, {"advisory": "RHSA-2016:0176", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "glibc-0:2.17-106.el7_2.4", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2016-02-16T00:00:00Z"}, {"advisory": "RHSA-2016:0225", "cpe": "cpe:/o:redhat:rhel_eus:7.1", "package": "glibc-0:2.17-79.ael7b_1.4", "product_name": "Red Hat Enterprise Linux 7.1 Extended Update Support", "release_date": "2016-02-16T00:00:00Z"}, {"advisory": "RHSA-2016:0277", "cpe": "cpe:/o:redhat:enterprise_linux:6::hypervisor", "package": "rhev-hypervisor6-0:6.7-20160104.2.el6ev", "product_name": "RHEV 3.X Hypervisor and Agents for RHEL-6", "release_date": "2016-02-19T00:00:00Z"}, {"advisory": "RHSA-2016:0277", "cpe": "cpe:/o:redhat:enterprise_linux:6::hypervisor", "package": "rhev-hypervisor7-0:7.2-20160105.2.el6ev", "product_name": "RHEV 3.X Hypervisor and Agents for RHEL-6", "release_date": "2016-02-19T00:00:00Z"}, {"advisory": "RHSA-2016:0277", "cpe": "cpe:/o:redhat:enterprise_linux:7::hypervisor", "package": "rhev-hypervisor7-0:7.2-20160105.2.el7ev", "product_name": "RHEV 3.X Hypervisor and Agents for RHEL-7", "release_date": "2016-02-19T00:00:00Z"}], "bugzilla": {"description": "glibc: getaddrinfo stack-based buffer overflow", "id": "1293532", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1293532"}, "csaw": true, "cvss": {"cvss_base_score": "6.8", "cvss_scoring_vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "status": "verified"}, "cwe": "CWE-121", "details": ["Multiple stack-based buffer overflows in the (1) send_dg and (2) send_vc functions in the libresolv library in the GNU C Library (aka glibc or libc6) before 2.23 allow remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a crafted DNS response that triggers a call to the getaddrinfo function with the AF_UNSPEC or AF_INET6 address family, related to performing \"dual A/AAAA DNS queries\" and the libnss_dns.so.2 NSS module.", "A stack-based buffer overflow was found in the way the libresolv library performed dual A/AAAA DNS queries. A remote attacker could create a specially crafted DNS response which could cause libresolv to crash or, potentially, execute code with the permissions of the user running the library. Note: this issue is only exposed when libresolv is called from the nss_dns NSS service module."], "name": "CVE-2015-7547", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:3", "fix_state": "Not affected", "package_name": "glibc", "product_name": "Red Hat Enterprise Linux 3"}, {"cpe": "cpe:/o:redhat:enterprise_linux:4", "fix_state": "Not affected", "package_name": "glibc", "product_name": "Red Hat Enterprise Linux 4"}, {"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "glibc", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:rhel_eus:6.7", "fix_state": "Affected", "package_name": "guest-images", "product_name": "Red Hat Enterprise Linux Extended Update Support 6.7"}, {"cpe": "cpe:/o:redhat:rhel_eus:7.2", "fix_state": "Affected", "package_name": "rhel-guest-image", "product_name": "Red Hat Enterprise Linux Extended Update Support 7.2"}], "public_date": "2016-02-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2015-7547\nhttps://nvd.nist.gov/vuln/detail/CVE-2015-7547\nhttps://access.redhat.com/articles/2161461"], "statement": "After updating the glibc package on affected systems, it is strongly recommended to reboot the system or restart all the affected services. For more information please refer to: https://access.redhat.com/articles/2161461", "threat_severity": "Critical"}