{"id":"CVE-2017-8779","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-8779","generatedAt":"2026-10-28T19:47:39.054Z","title":"rpcbind through 0.2.4, LIBTIRPC through 1.0.1 and 1.0.2-rc through 1.0.2-rc3, and NTIRPC through 1.4.3 do not consider the maximum RPC data size during memory allocation for XDR strings, which allows remote attackers to cause a denial of service (memory…","description":"rpcbind through 0.2.4, LIBTIRPC through 1.0.1 and 1.0.2-rc through 1.0.2-rc3, and NTIRPC through 1.4.3 do not consider the maximum RPC data size during memory allocation for XDR strings, which allows remote attackers to cause a denial of service (memory consumption with no subsequent free) via a crafted UDP packet to port 111, aka rpcbomb.","published":"2017-05-04T14:29:00.000Z","lastModified":"2026-06-17T01:26:57.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":7.5,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-770"],"affected":["rpcbind project/rpcbind","libtirpc project/libtirpc","ntirpc project/ntirpc"],"epss":{"score":0.8123,"percentile":0.99633,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.80083,"percentile":0.99607},{"date":"2026-09-22","score":0.8123,"percentile":0.99618}]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2017-05-08","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":41974,"kind":"exploit","title":"RPCBind / libtirpc - Denial of Service","url":"https://www.exploit-db.com/exploits/41974","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/dos/41974.rb","file":"exploits/linux/dos/41974.rb","published":"2017-05-08","added":"2017-05-08","updated":"2017-05-08","author":"Guido Vranken","type":"dos","platform":"linux","port":111,"verified":false,"codes":["CVE-2017-8779"],"tags":"Denial of Service (DoS)","aliases":"rpcbomb","applicationUrl":"http://www.exploit-db.comrpcbind-0.2.4.tar.bz2","screenshotUrl":null,"referenceUrl":"https://github.com/guidovranken/rpcbomb/blob/fe53048af2d4fb78c911e71a30f21afcffbbf5e1/rpcbomb.rb"}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 81.2%, higher than 100% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://openwall.com/lists/oss-security/2017/05/03/12","tags":["Mailing List","Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://openwall.com/lists/oss-security/2017/05/04/1","tags":["Mailing List","Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://www.debian.org/security/2017/dsa-3845","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/98325","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"http://www.securitytracker.com/id/1038532","source":"cve@mitre.org"},{"url":"https://access.redhat.com/errata/RHBA-2017:1497","source":"cve@mitre.org"},{"url":"https://access.redhat.com/errata/RHSA-2017:1262","source":"cve@mitre.org"},{"url":"https://access.redhat.com/errata/RHSA-2017:1263","source":"cve@mitre.org"},{"url":"https://access.redhat.com/errata/RHSA-2017:1267","source":"cve@mitre.org"},{"url":"https://access.redhat.com/errata/RHSA-2017:1268","source":"cve@mitre.org"},{"url":"https://access.redhat.com/errata/RHSA-2017:1395","source":"cve@mitre.org"},{"url":"https://github.com/drbothen/GO-RPCBOMB","tags":["Issue Tracking","Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/guidovranken/rpcbomb/","tags":["Issue Tracking","Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://guidovranken.wordpress.com/2017/05/03/rpcbomb-remote-rpcbind-denial-of-service-patches/","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://security.gentoo.org/glsa/201706-07","source":"cve@mitre.org"},{"url":"https://security.netapp.com/advisory/ntap-20180109-0001/","source":"cve@mitre.org"},{"url":"https://usn.ubuntu.com/3759-1/","source":"cve@mitre.org"},{"url":"https://usn.ubuntu.com/3759-2/","source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/41974/","source":"cve@mitre.org"},{"url":"http://openwall.com/lists/oss-security/2017/05/03/12","tags":["Mailing List","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://openwall.com/lists/oss-security/2017/05/04/1","tags":["Mailing List","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2017/dsa-3845","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/98325","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1038532","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHBA-2017:1497","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2017:1262","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2017:1263","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2017:1267","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2017:1268","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2017:1395","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/drbothen/GO-RPCBOMB","tags":["Issue Tracking","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/guidovranken/rpcbomb/","tags":["Issue Tracking","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://guidovranken.wordpress.com/2017/05/03/rpcbomb-remote-rpcbind-denial-of-service-patches/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201706-07","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20180109-0001/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3759-1/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3759-2/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/41974/","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-8779","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}