{"id":"CVE-2018-19132","aliases":["CLSA-2026-1777539404","CLSA-2026-1777541147","DEBIAN-CVE-2018-19132","DLA-1596-1","DLA-2278-1","EUVD-2018-10845","GHSA-5vh5-r999-h6wp","MGASA-2018-0458","SUSE-SU-2018:3771-1","SUSE-SU-2018:3771-2","SUSE-SU-2018:3786-1","UBUNTU-CVE-2018-19132","USN-4059-1","openSUSE-SU-2024:11403-1"],"status":"published","title":"Squid before 4.4, when SNMP is enabled, allows a denial of service (Memory Leak) via an SNMP packet.","description":"Squid before 4.4, when SNMP is enabled, allows a denial of service (Memory Leak) via an SNMP packet.","severity":{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.05877,"percentile":0.93261,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-772"],"published":"2018-11-09T00:00:00Z","modified":"2026-10-23T18:03:03Z","fixes":[{"ecosystem":"Debian:12","package":"squid","fixed_in":["4.4-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"squid","fixed_in":["4.4-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"squid","fixed_in":["4.4-1"],"sources":["osv"]},{"ecosystem":"Debian:8","package":"squid3","fixed_in":["3.4.8-6+deb8u6"],"sources":["osv"]},{"ecosystem":"Ubuntu:16.04:LTS","package":"squid3","fixed_in":["3.5.12-1ubuntu7.7"],"sources":["osv"]},{"ecosystem":"Ubuntu:18.04:LTS","package":"squid3","fixed_in":["3.5.27-1ubuntu1.2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"TuxCare:OracleLinux:6","package":"squid34","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.4.14-16.el6.tuxcare.els13"}]}],"bundled":12},{"source":"osv","ecosystem":"TuxCare:CentOS:6","package":"squid34","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.4.14-16.el6.tuxcare.els13"}]}],"bundled":12},{"source":"osv","ecosystem":"Debian:12","package":"squid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"squid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"squid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4-1"}]}]},{"source":"osv","ecosystem":"Debian:8","package":"squid3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.8-6+deb8u6"}]}],"versions":["3.4.8-6","3.4.8-6+deb8u1","3.4.8-6+deb8u2","3.4.8-6+deb8u2~bpo70+1","3.4.8-6+deb8u3","3.4.8-6+deb8u4","3.4.8-6+deb8u5"]},{"source":"osv","ecosystem":"Debian:9","package":"squid3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.23-5+deb9u2"}]}],"versions":["3.5.23-5","3.5.23-5+deb9u1"],"bundled":19},{"source":"osv","ecosystem":"Mageia:6","package":"squid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.26-1.2.mga6"}]}],"bundled":2},{"source":"osv","ecosystem":"SUSE:Linux 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15","package":"squid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4-5.3.2"}]}],"bundled":2},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"squid3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.12-1ubuntu7.7"}]}],"versions":["3.3.8-1ubuntu16","3.3.8-1ubuntu17","3.5.12-1ubuntu6","3.5.12-1ubuntu7","3.5.12-1ubuntu7.1","3.5.12-1ubuntu7.2","3.5.12-1ubuntu7.3","3.5.12-1ubuntu7.4","3.5.12-1ubuntu7.5","3.5.12-1ubuntu7.6"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"squid3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.27-1ubuntu1.2"}]}],"versions":["3.5.23-5ubuntu1","3.5.23-5ubuntu2","3.5.27-1ubuntu1","3.5.27-1ubuntu1.1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"squid3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.12-1ubuntu7.7"}]}],"versions":["3.3.8-1ubuntu16","3.3.8-1ubuntu17","3.5.12-1ubuntu6","3.5.12-1ubuntu7","3.5.12-1ubuntu7.1","3.5.12-1ubuntu7.2","3.5.12-1ubuntu7.3","3.5.12-1ubuntu7.4","3.5.12-1ubuntu7.5","3.5.12-1ubuntu7.6"],"bundled":2},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"squid3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.27-1ubuntu1.2"}]}],"versions":["3.5.23-5ubuntu1","3.5.23-5ubuntu2","3.5.27-1ubuntu1","3.5.27-1ubuntu1.1"],"bundled":2},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"squid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.16-1.5"}]}],"bundled":40}],"products":[{"vendor":"debian","product":"debian_linux"},{"vendor":"squid-cache","product":"squid"}],"references":[{"url":"https://github.com/squid-cache/squid/pull/313","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"http://www.squid-cache.org/Versions/v5/changesets/squid-5-644131ff1e00c1895d77561f561d29c104ba6b11.patch","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory","fix"]},{"url":"http://www.squid-cache.org/Advisories/SQUID-2018_5.txt","tags":["x_refsource_MISC","x_transferred","Mitigation","Vendor Advisory","advisory","web","report"]},{"url":"https://lists.debian.org/debian-lts-announce/2018/11/msg00032.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"https://usn.ubuntu.com/4059-1/","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","web"]},{"url":"https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-19132"},{"url":"https://github.com/advisories/GHSA-5vh5-r999-h6wp"},{"url":"https://errata.tuxcare.com/els_os/oraclelinux6els/CLSA-2026-1777539404.html","tags":["advisory"]},{"url":"https://errata.tuxcare.com/els_os/centos6els/CLSA-2026-1777541147.html","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2018-19132","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2018-0458.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=23780","tags":["report"]},{"url":"http://www.squid-cache.org/Advisories/SQUID-2018_4.txt","tags":["web"]},{"url":"https://www.openwall.com/lists/oss-security/2018/11/09/1","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2018/suse-su-20183771-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1082318","tags":["report"]},{"url":"https://bugzilla.suse.com/1112066","tags":["report"]},{"url":"https://bugzilla.suse.com/1112695","tags":["report"]},{"url":"https://bugzilla.suse.com/1113668","tags":["report"]},{"url":"https://bugzilla.suse.com/1113669","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2018-19131","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-19132","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2018/suse-su-20183771-2/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2018/suse-su-20183786-1/","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2018-19132","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-4059-1","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-19132","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2019-13345","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2016-10002","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-10003","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-2569","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-2571","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-3947","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-4051","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-4052","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-4553","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-4555","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-1000024","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-1000027","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-1172","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-12519","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-12523","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-12525","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-12526","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-12527","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-12528","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-12529","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-12854","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-13345","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-18677","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-18678","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-18679","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-18860","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-11945","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-14059","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-15049","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-15810","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-15811","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-24606","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-25097","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-8449","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-8517","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-28651","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-28652","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-28662","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-31806","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2018-19132","description":"Squid before 4.4, when SNMP is enabled, allows a denial of service (Memory Leak) via an SNMP packet.","status":"published","published":"2018-11-09T11:00:00Z","modified":"2024-08-05T11:30:03.999Z","updated_at":"2026-11-02T14:35:02.966615Z"}],"euvd":[{"id":"EUVD-2018-10845","description":"Squid before 4.4, when SNMP is enabled, allows a denial of service (Memory Leak) via an SNMP packet.","status":"published","published":"2018-11-09T11:00:00Z","modified":"2024-08-05T11:30:03Z","updated_at":"2026-11-03T02:39:34.247095Z"}],"ghsa":[{"id":"GHSA-5vh5-r999-h6wp","title":"Squid before 4.4, when SNMP is enabled, allows a denial of service (Memory Leak) via an SNMP packet.","description":"Squid before 4.4, when SNMP is enabled, allows a denial of service (Memory Leak) via an SNMP packet.","status":"published","published":"2022-05-13T01:25:24Z","modified":"2023-02-01T05:07:37Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-772"],"updated_at":"2026-11-02T14:50:34.561364Z"}],"nvd":[{"id":"CVE-2018-19132","description":"Squid before 4.4, when SNMP is enabled, allows a denial of service (Memory Leak) via an SNMP packet.","status":"published","published":"2018-11-09T11:29:03.953Z","modified":"2026-06-17T01:48:50.493Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-772"],"updated_at":"2026-11-02T14:04:47.196456Z"}],"osv":[{"id":"CVE-2018-19132","description":"Squid before 4.4, when SNMP is enabled, allows a denial of service (Memory Leak) via an SNMP packet.","status":"published","published":"2018-11-09T11:29:03.953Z","modified":"2026-10-20T10:50:23.105781598Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:08.834469Z"},{"id":"DEBIAN-CVE-2018-19132","description":"Squid before 4.4, when SNMP is enabled, allows a denial of service (Memory Leak) via an SNMP packet.","status":"published","published":"2018-11-09T11:29:03.953Z","modified":"2026-10-23T18:03:03.223839397Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:30.57382Z"},{"id":"UBUNTU-CVE-2018-19132","description":"Squid before 4.4, when SNMP is enabled, allows a denial of service (Memory Leak) via an SNMP packet.","status":"published","published":"2018-11-09T00:00:00Z","modified":"2026-02-04T04:25:53.210069Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:54:17.496046Z"},{"id":"CLSA-2026-1777539404","title":"squid34: Fix of 12 CVEs","description":"- CVE-2019-12525: fix heap buffer over-read in Digest auth parameter parsing\n- CVE-2018-1000027: fix NULL pointer dereference in X-Forwarded-For logging for internal transactions\n- CVE-2018-19131: escape certificate field injection via %D in ERR_SECURE_CONNECT_FAIL page\n- CVE-2018-19132: fix memory leak when parsing denied or malformed SNMP packets\n- CVE-2019-13345: escape user_name and pub_auth parameters in cachemgr.cgi to prevent reflected XSS\n- CVE-2019-18860: validate hostname parameter in cachemgr.cgi to prevent reflected XSS\n- CVE-2019-18677: prevent hostname truncation when append_domain expands origin-relative domains\n- CVE-2019-18679: remove in-memory pointer from Digest nonce hash input (ASLR bypass)\n- CVE-2019-18678: reject HTTP requests with BWS between header field-name and colon (RFC 7230 3.2.4)\n- CVE-2019-12523: validate URN NID per RFC 8141 to prevent SSRF via crafted urn: requests\n- CVE-2019-12528: track FTP listing token positions to avoid strstr-based over-read into adjacent heap\n- CVE-2019-12529: replace uudecode with base64_decode in Basic auth to bound input-buffer reads","status":"published","published":"2026-04-30T08:56:49Z","modified":"2026-10-21T10:48:12.180143482Z","updated_at":"2026-11-02T15:43:44.384419Z"},{"id":"CLSA-2026-1777541147","title":"squid34: Fix of 12 CVEs","description":"- CVE-2019-12525: fix heap buffer over-read in Digest auth parameter parsing\n- CVE-2018-1000027: fix NULL pointer dereference in X-Forwarded-For logging for internal transactions\n- CVE-2018-19131: escape certificate field injection via %D in ERR_SECURE_CONNECT_FAIL page\n- CVE-2018-19132: fix memory leak when parsing denied or malformed SNMP packets\n- CVE-2019-13345: escape user_name and pub_auth parameters in cachemgr.cgi to prevent reflected XSS\n- CVE-2019-18860: validate hostname parameter in cachemgr.cgi to prevent reflected XSS\n- CVE-2019-18677: prevent hostname truncation when append_domain expands origin-relative domains\n- CVE-2019-18679: remove in-memory pointer from Digest nonce hash input (ASLR bypass)\n- CVE-2019-18678: reject HTTP requests with BWS between header field-name and colon (RFC 7230 3.2.4)\n- CVE-2019-12523: validate URN NID per RFC 8141 to prevent SSRF via crafted urn: requests\n- CVE-2019-12528: track FTP listing token positions to avoid strstr-based over-read into adjacent heap\n- CVE-2019-12529: replace uudecode with base64_decode in Basic auth to bound input-buffer reads","status":"published","published":"2026-05-02T01:02:36Z","modified":"2026-10-21T10:47:49.998050891Z","updated_at":"2026-11-02T15:43:44.384419Z"},{"id":"DLA-1596-1","title":"squid3 - security update","status":"published","published":"2018-11-26T00:00:00Z","modified":"2026-03-09T01:01:10.649269Z","updated_at":"2026-11-02T15:46:09.777694Z"},{"id":"DLA-2278-1","title":"squid3 - security update","status":"published","published":"2020-07-10T00:00:00Z","modified":"2026-03-09T01:21:50.659924Z","updated_at":"2026-11-02T15:46:10.227108Z"},{"id":"MGASA-2018-0458","title":"Updated squid packages fix security vulnerabilities","description":"Due to incorrect input handling, Squid is vulnerable to a Cross-Site\nScripting vulnerability when generating HTTPS response messages about\nTLS errors (CVE-2018-19131).\n\nDue to a memory leak in SNMP query rejection code, Squid is vulnerable\nto a denial of service attack (CVE-2018-19132).\n","status":"published","published":"2018-11-17T22:23:26Z","modified":"2026-04-16T06:22:37.828056613Z","updated_at":"2026-11-02T15:49:40.793816Z"},{"id":"openSUSE-SU-2024:11403-1","title":"squid-4.16-1.5 on GA media","description":"These are all security issues fixed in the squid-4.16-1.5 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T03:28:26.444707Z","updated_at":"2026-11-02T16:58:35.195147Z"},{"id":"SUSE-SU-2018:3771-1","title":"Security update for squid","description":"This update for squid fixes the following issues:\n\nSecurity issues fixed:\n\n- CVE-2018-19131: Fixed Cross-Site-Scripting vulnerability in the TLS error handling (bsc#1113668).\n- CVE-2018-19132: Fixed small memory leak in processing of SNMP packets (bsc#1113669).\n\nNon-security issues fixed:\n\n- Create runtime directories needed when SMP mode is enabled (bsc#1112695, bsc#1112066).\n- Install license correctly (bsc#1082318).\n","status":"published","published":"2018-11-15T13:17:18Z","modified":"2026-02-04T03:43:54.644109Z","updated_at":"2026-11-02T15:53:45.378228Z"},{"id":"SUSE-SU-2018:3771-2","title":"Security update for squid","description":"This update for squid fixes the following issues:\n\nSecurity issues fixed:\n\n- CVE-2018-19131: Fixed Cross-Site-Scripting vulnerability in the TLS error handling (bsc#1113668).\n- CVE-2018-19132: Fixed small memory leak in processing of SNMP packets (bsc#1113669).\n\nNon-security issues fixed:\n\n- Create runtime directories needed when SMP mode is enabled (bsc#1112695, bsc#1112066).\n- Install license correctly (bsc#1082318).\n","status":"published","published":"2018-12-06T12:52:59Z","modified":"2026-02-04T04:11:30.455237Z","updated_at":"2026-11-02T15:53:45.378228Z"},{"id":"SUSE-SU-2018:3786-1","title":"Security update for squid","description":"This update for squid fixes the following issues:\n\nSecurity issues fixed:\n\n- CVE-2018-19131: Fixed Cross-Site-Scripting vulnerability in the TLS error handling (bsc#1113668).\n- CVE-2018-19132: Fixed small memory leak in processing of SNMP packets (bsc#1113669).\n\nNon-security issues fixed:\n\n- Create runtime directories needed when SMP mode is enabled (bsc#1112695, bsc#1112066).\n- Install license correctly (bsc#1082318).\n","status":"published","published":"2018-11-16T14:54:47Z","modified":"2026-02-04T02:15:30.670957Z","updated_at":"2026-11-02T15:53:45.378228Z"},{"id":"USN-4059-1","title":"squid, squid3 vulnerabilities","description":"It was discovered that Squid incorrectly handled certain SNMP packets. A\nremote attacker could possibly use this issue to cause memory consumption,\nleading to a denial of service. This issue only affected Ubuntu 16.04 LTS\nand Ubuntu 18.04 LTS. (CVE-2018-19132)\n\nIt was discovered that Squid incorrectly handled the cachemgr.cgi web\nmodule. A remote attacker could possibly use this issue to conduct\ncross-site scripting (XSS) attacks. (CVE-2019-13345)\n","status":"published","published":"2019-07-15T14:38:10Z","modified":"2026-02-10T04:41:34Z","updated_at":"2026-11-02T16:58:14.019824Z"}]}}