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{"affected_release": [{"advisory": "RHSA-2018:0805", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "glibc-0:2.17-222.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2018-04-10T00:00:00Z"}], "bugzilla": {"description": "glibc: Fragmentation attacks possible when EDNS0 is enabled", "id": "1477529", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1477529"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.0", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:N", "status": "verified"}, "details": ["The DNS stub resolver in the GNU C Library (aka glibc or libc6) before version 2.26, when EDNS support is enabled, will solicit large UDP responses from name servers, potentially simplifying off-path DNS spoofing attacks due to IP fragmentation."], "name": "CVE-2017-12132", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Will not fix", "package_name": "compat-glibc", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Will not fix", "package_name": "glibc", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Will not fix", "package_name": "compat-glibc", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Will not fix", "package_name": "glibc", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Will not fix", "package_name": "compat-glibc", "product_name": "Red Hat Enterprise Linux 7"}], "public_date": "2017-04-07T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2017-12132\nhttps://nvd.nist.gov/vuln/detail/CVE-2017-12132"], "statement": "This issue only affects systems which use a remote recursive resolver and enable EDNS0, either with the \u201cedns0\u201d option in /etc/resolv.conf, or using the RES_USE_EDNS0 or RES_USE_DNSSEC resolver flags. The underlying issue affects recursive resolvers such as BIND and Unbound as well, and has to be fixed separately there.", "threat_severity": "Low", "upstream_fix": "glibc 2.26"}