{"id":"CVE-2019-12519","aliases":["ALPINE-CVE-2019-12519","ALSA-2020:2041","DEBIAN-CVE-2019-12519","DLA-2278-1","DSA-4682-1","EUVD-2019-4114","GHSA-2398-fmp4-7w9h","OESA-2021-1020","RHSA-2020:2038","RHSA-2020:2039","RHSA-2020:2040","RHSA-2020:2041","RLSA-2020:2041","SUSE-SU-2020:1134-1","SUSE-SU-2020:1156-1","SUSE-SU-2020:1227-1","SUSE-SU-2020:14460-1","UBUNTU-CVE-2019-12519","USN-4356-1","openSUSE-SU-2020:0623-1","openSUSE-SU-2024:11403-1"],"status":"published","title":"An issue was discovered in Squid through 4.7. When handling the tag esi:when when ESI is enabled,...","description":"An issue was discovered in Squid through 4.7. When handling the tag esi:when when ESI is enabled, Squid calls ESIExpression::Evaluate. This function uses a fixed stack buffer to hold the expression while it's being evaluated. When processing the expression, it could either evaluate the top of the stack, or add a new member to the stack. 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Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-12519","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-2398-fmp4-7w9h"},{"url":"https://security.alpinelinux.org/vuln/CVE-2019-12519","tags":["advisory"]},{"url":"https://errata.almalinux.org/8/ALSA-2020-2041.html","tags":["advisory"]},{"url":"https://vulners.com/cve/CVE-2019-12519","tags":["report"]},{"url":"https://vulners.com/cve/CVE-2019-12525","tags":["report"]},{"url":"https://vulners.com/cve/CVE-2020-11945","tags":["report"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2019-12519","tags":["advisory"]},{"url":"https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1020","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2020:2038","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#important","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1827552","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1827563","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2020/rhsa-2020_2038.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2019-12519","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-12519","tags":["advisory","report"]},{"url":"http://www.squid-cache.org/Advisories/SQUID-2019_12.txt","tags":["article","report"]},{"url":"https://access.redhat.com/security/cve/CVE-2020-11945","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-11945","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-11945","tags":["advisory"]},{"url":"http://www.squid-cache.org/Advisories/SQUID-2020_4.txt","tags":["article"]},{"url":"https://access.redhat.com/errata/RHSA-2020:2039","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2020/rhsa-2020_2039.json","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2020:2040","tags":["advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1730535","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2020/rhsa-2020_2040.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2019-12525","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-12525","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-12525","tags":["advisory"]},{"url":"http://www.squid-cache.org/Advisories/SQUID-2019_3.txt","tags":["article"]},{"url":"https://access.redhat.com/errata/RHSA-2020:2041","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2020/rhsa-2020_2041.json","tags":["advisory"]},{"url":"https://errata.rockylinux.org/RLSA-2020:2041","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2020/suse-su-20201134-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1162689","tags":["report"]},{"url":"https://bugzilla.suse.com/1162691","tags":["report"]},{"url":"https://bugzilla.suse.com/1167373","tags":["report"]},{"url":"https://bugzilla.suse.com/1169659","tags":["report"]},{"url":"https://bugzilla.suse.com/1170313","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2019-12519","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-12521","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-12528","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-2020-8517","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2020/suse-su-20201156-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2020/suse-su-20201227-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1170423","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2019-12520","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-12524","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2020/suse-su-202014460-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1140738","tags":["report"]},{"url":"https://bugzilla.suse.com/1141329","tags":["report"]},{"url":"https://bugzilla.suse.com/1141332","tags":["report"]},{"url":"https://bugzilla.suse.com/1156323","tags":["report"]},{"url":"https://bugzilla.suse.com/1156324","tags":["report"]},{"url":"https://bugzilla.suse.com/1156326","tags":["report"]},{"url":"https://bugzilla.suse.com/1156328","tags":["report"]},{"url":"https://bugzilla.suse.com/1156329","tags":["report"]},{"url":"https://bugzilla.suse.com/1162687","tags":["report"]},{"url":"https://bugzilla.suse.com/1173304","tags":["report"]},{"url":"https://bugzilla.suse.com/1173455","tags":["report"]},{"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-2019-12529","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-13345","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-18676","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-2020-14059","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-15049","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-8449","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-8450","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2019-12519","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-4356-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2019-12521","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2019-18860","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-11945","tags":["report"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/PKK52WC254R33WBSNPYY4IHIZMYTJYNU/","tags":["advisory"]},{"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-2018-19131","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-19132","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-12527","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-12854","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-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-2019-12519","description":"An issue was discovered in Squid through 4.7. When handling the tag esi:when when ESI is enabled, Squid calls ESIExpression::Evaluate. This function uses a fixed stack buffer to hold the expression while it's being evaluated. When processing the expression, it could either evaluate the top of the stack, or add a new member to the stack. When adding a new member, there is no check to ensure that the stack won't overflow.","status":"published","published":"2020-04-15T19:20:41Z","modified":"2024-08-04T23:24:37.851Z","updated_at":"2026-11-02T14:20:23.697579Z"}],"euvd":[{"id":"EUVD-2019-4114","description":"An issue was discovered in Squid through 4.7. When handling the tag esi:when when ESI is enabled, Squid calls ESIExpression::Evaluate. This function uses a fixed stack buffer to hold the expression while it's being evaluated. When processing the expression, it could either evaluate the top of the stack, or add a new member to the stack. When adding a new member, there is no check to ensure that the stack won't overflow.","status":"published","published":"2020-04-15T19:20:41Z","modified":"2024-08-04T23:24:37Z","updated_at":"2026-11-03T02:40:45.973526Z"}],"ghsa":[{"id":"GHSA-2398-fmp4-7w9h","title":"An issue was discovered in Squid through 4.7. When handling the tag esi:when when ESI is enabled,...","description":"An issue was discovered in Squid through 4.7. When handling the tag esi:when when ESI is enabled, Squid calls ESIExpression::Evaluate. This function uses a fixed stack buffer to hold the expression while it's being evaluated. When processing the expression, it could either evaluate the top of the stack, or add a new member to the stack. When adding a new member, there is no check to ensure that the stack won't overflow.","status":"published","published":"2022-05-24T17:14:19Z","modified":"2023-01-29T05:02:11Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:45:01.015636Z"}],"nvd":[{"id":"CVE-2019-12519","description":"An issue was discovered in Squid through 4.7. When handling the tag esi:when when ESI is enabled, Squid calls ESIExpression::Evaluate. This function uses a fixed stack buffer to hold the expression while it's being evaluated. When processing the expression, it could either evaluate the top of the stack, or add a new member to the stack. When adding a new member, there is no check to ensure that the stack won't overflow.","status":"published","published":"2020-04-15T20:15:13.473Z","modified":"2026-06-17T02:14:48.43Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:05:46.451008Z"}],"osv":[{"id":"ALPINE-CVE-2019-12519","description":"An issue was discovered in Squid through 4.7. When handling the tag esi:when when ESI is enabled, Squid calls ESIExpression::Evaluate. This function uses a fixed stack buffer to hold the expression while it's being evaluated. When processing the expression, it could either evaluate the top of the stack, or add a new member to the stack. When adding a new member, there is no check to ensure that the stack won't overflow.","status":"published","published":"2020-04-15T20:15:13.473Z","modified":"2026-09-21T06:17:52.46503755Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:27:47.663013Z"},{"id":"CVE-2019-12519","description":"An issue was discovered in Squid through 4.7. When handling the tag esi:when when ESI is enabled, Squid calls ESIExpression::Evaluate. This function uses a fixed stack buffer to hold the expression while it's being evaluated. When processing the expression, it could either evaluate the top of the stack, or add a new member to the stack. When adding a new member, there is no check to ensure that the stack won't overflow.","status":"published","published":"2020-04-15T20:15:13.473Z","modified":"2026-10-24T10:30:46.439909056Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:10.718934Z"},{"id":"DEBIAN-CVE-2019-12519","description":"An issue was discovered in Squid through 4.7. When handling the tag esi:when when ESI is enabled, Squid calls ESIExpression::Evaluate. This function uses a fixed stack buffer to hold the expression while it's being evaluated. When processing the expression, it could either evaluate the top of the stack, or add a new member to the stack. When adding a new member, there is no check to ensure that the stack won't overflow.","status":"published","published":"2020-04-15T20:15:13.473Z","modified":"2026-09-21T07:02:16.259049684Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:45:31.467893Z"},{"id":"OESA-2021-1020","title":"squid security update","description":"Squid is a high-performance proxy caching server. It handles all requests in a single, non-blocking, I/O-driven process and keeps meta data and implements negative caching of failed requests.\\r\\n\\r\\n\r\nSecurity Fix(es):\\r\\n\\r\\n\r\nAn issue was discovered in Squid through 4.7. When handling the tag esi:when when ESI is enabled, Squid calls ESIExpression::Evaluate. This function uses a fixed stack buffer to hold the expression while its being evaluated. When processing the expression, it could either evaluate the top of the stack, or add a new member to the stack. When adding a new member, there is no check to ensure that the stack wont overflow.(CVE-2019-12519)\\r\\n\\r\\n","status":"published","published":"2021-02-04T11:04:15Z","modified":"2026-08-18T01:15:08.899506583Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:52:38.987987Z"},{"id":"RHSA-2020:2038","title":"Red Hat Security Advisory: squid:4 security update","status":"published","published":"2024-09-16T04:07:18Z","modified":"2025-11-22T12:01:04Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:07.072948Z"},{"id":"RHSA-2020:2039","title":"Red Hat Security Advisory: squid:4 security update","status":"published","published":"2024-09-16T04:07:26Z","modified":"2025-11-22T12:01:05Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:07.072948Z"},{"id":"RHSA-2020:2040","title":"Red Hat Security Advisory: squid security update","status":"published","published":"2024-09-16T04:08:11Z","modified":"2026-06-26T10:48:13Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:07.072948Z"},{"id":"RHSA-2020:2041","title":"Red Hat Security Advisory: squid:4 security update","status":"published","published":"2024-09-16T04:08:04Z","modified":"2026-01-14T11:04:45.067815Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:07.072948Z"},{"id":"RLSA-2020:2041","title":"Important: squid:4 security update","description":"Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.\n\nSecurity Fix(es):\n\n* squid: improper check for new member in ESIExpression::Evaluate allows for stack buffer overflow (CVE-2019-12519)\n\n* squid: improper access restriction upon Digest Authentication nonce replay could lead to remote code execution (CVE-2020-11945)\n\n* squid: parsing of header Proxy-Authentication leads to memory corruption (CVE-2019-12525)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2020-05-06T12:52:10Z","modified":"2026-02-05T01:15:06.87317Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:23.969672Z"},{"id":"UBUNTU-CVE-2019-12519","description":"An issue was discovered in Squid through 4.7. When handling the tag esi:when when ESI is enabled, Squid calls ESIExpression::Evaluate. This function uses a fixed stack buffer to hold the expression while it's being evaluated. When processing the expression, it could either evaluate the top of the stack, or add a new member to the stack. When adding a new member, there is no check to ensure that the stack won't overflow.","status":"published","published":"2020-04-15T20:15:00Z","modified":"2026-02-04T03:32:58.902451Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:54:19.202697Z"},{"id":"ALSA-2020:2041","title":"Important: squid:4 security update","description":"Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.\n\nSecurity Fix(es):\n\n* squid: improper check for new member in ESIExpression::Evaluate allows for stack buffer overflow (CVE-2019-12519)\n\n* squid: improper access restriction upon Digest Authentication nonce replay could lead to remote code execution (CVE-2020-11945)\n\n* squid: parsing of header Proxy-Authentication leads to memory corruption (CVE-2019-12525)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2020-05-06T12:52:10Z","modified":"2026-10-29T11:00:18.787433548Z","updated_at":"2026-11-02T15:27:51.196609Z"},{"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":"DSA-4682-1","title":"squid - security update","status":"published","published":"2020-05-08T00:00:00Z","modified":"2026-03-09T02:09:44.67451Z","updated_at":"2026-11-02T15:46:17.19998Z"},{"id":"openSUSE-SU-2020:0623-1","title":"Security update for squid","description":"This update for squid to version 4.11 fixes the following issues:\n\n- CVE-2020-11945: Fixed a potential remote code execution vulnerability when using\n  HTTP Digest Authentication (bsc#1170313).\n- CVE-2019-12519, CVE-2019-12521: Fixed incorrect buffer handling that can result \n  in cache poisoning, remote execution, and denial of service attacks when\n  processing ESI responses (bsc#1169659).\n- CVE-2020-8517: Fixed a possible denial of service caused by incorrect buffer\n  management ext_lm_group_acl when processing NTLM Authentication credentials (bsc#1162691).\n- CVE-2019-12528: Fixed possible information disclosure when translating\n  FTP server listings into HTTP responses (bsc#1162689).\n- CVE-2019-18860: Fixed handling of invalid domain names in cachemgr.cgi (bsc#1167373).\n\nThis update was imported from the SUSE:SLE-15:Update update project.","status":"published","published":"2020-05-08T10:21:50Z","modified":"2026-02-04T03:05:38.483667Z","updated_at":"2026-11-02T16:58:31.152112Z"},{"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-2020:1134-1","title":"Security update for squid","description":"This update for squid to version 4.11 fixes the following issues:\n\n- CVE-2020-11945: Fixed a potential remote code execution vulnerability when using\n  HTTP Digest Authentication (bsc#1170313).\n- CVE-2019-12519, CVE-2019-12521: Fixed incorrect buffer handling that can result \n  in cache poisoning, remote execution, and denial of service attacks when\n  processing ESI responses (bsc#1169659).\n- CVE-2020-8517: Fixed a possible denial of service caused by incorrect buffer\n  management ext_lm_group_acl when processing NTLM Authentication credentials (bsc#1162691).\n- CVE-2019-12528: Fixed possible information disclosure when translating\n  FTP server listings into HTTP responses (bsc#1162689).\n- CVE-2019-18860: Fixed handling of invalid domain names in cachemgr.cgi (bsc#1167373).\n","status":"published","published":"2020-04-29T05:50:38Z","modified":"2026-02-04T03:44:25.255594Z","updated_at":"2026-11-02T15:53:47.634847Z"},{"id":"SUSE-SU-2020:1156-1","title":"Security update for squid","description":"This update for squid to version 4.11 fixes the following issues:\n\n- CVE-2020-11945: Fixed a potential remote code execution vulnerability when using\n  HTTP Digest Authentication (bsc#1170313).\n- CVE-2019-12519, CVE-2019-12521: Fixed incorrect buffer handling that can result \n  in cache poisoning, remote execution, and denial of service attacks when\n  processing ESI responses (bsc#1169659).\n- CVE-2020-8517: Fixed a possible denial of service caused by incorrect buffer\n  management ext_lm_group_acl when processing NTLM Authentication credentials (bsc#1162691).\n- CVE-2019-12528: Fixed possible information disclosure when translating\n  FTP server listings into HTTP responses (bsc#1162689).\n- CVE-2019-18860: Fixed handling of invalid domain names in cachemgr.cgi (bsc#1167373).\n","status":"published","published":"2020-04-30T08:10:49Z","modified":"2026-02-04T02:41:26.675306Z","updated_at":"2026-11-02T15:53:47.634847Z"},{"id":"SUSE-SU-2020:1227-1","title":"Security update for squid","description":"This update for squid fixes the following issues:\n\n- CVE-2019-12519, CVE-2019-12521: fixes incorrect buffer handling that can \n  result in cache poisoning, remote execution, and denial of service attacks\n  when processing ESI responses (bsc#1169659).\n- CVE-2020-11945: fixes a potential remote execution vulnerability\n  when using HTTP Digest Authentication (bsc#1170313).\n- CVE-2019-12520, CVE-2019-12524: fixes a potential ACL bypass, cache-bypass\n  and cross-site scripting attack when processing invalid HTTP\n  Request messages (bsc#1170423).\n","status":"published","published":"2020-05-08T12:14:02Z","modified":"2026-02-04T04:32:03.327853Z","updated_at":"2026-11-02T15:53:47.634847Z"},{"id":"SUSE-SU-2020:14460-1","title":"Security update for squid3","description":"This update for squid3 fixes the following issues:\n\n- Fixed a Cache Poisoning and Request Smuggling\n  attack (CVE-2020-15049, bsc#1173455)\n- Fixed incorrect buffer handling that can\n  result in cache poisoning, remote execution, and\n  denial of service attacks when processing ESI responses\n  (CVE-2019-12519, CVE-2019-12521, bsc#1169659)\n\n- Fixed handling of hostname in\n  cachemgr.cgi (CVE-2019-18860, bsc#1167373)\n- Fixed a potential remote execution vulnerability\n  when using HTTP Digest Authentication (CVE-2020-11945, bsc#1170313)\n- Fixed a potential ACL bypass, cache-bypass\n  and cross-site scripting attack when processing invalid HTTP\n  Request messages (CVE-2019-12520, CVE-2019-12524, bsc#1170423)\n- Fixed a potential denial of service when\n  processing TLS certificates during HTTPS connections\n  (CVE-2020-14059, bsc#1173304)\n\n- Fixed a potential denial of service associated\n  with incorrect buffer management of HTTP Basic Authentication\n  credentials (bsc#1141329, CVE-2019-12529)\n- Fixed an incorrect buffer management resulting\n  in vulnerability to a denial of service during processing of\n  HTTP Digest Authentication credentials (bsc#1141332, CVE-2019-12525)\n- Fix XSS via user_name or auth parameter\n  in cachemgr.cgi (bsc#1140738, CVE-2019-13345)\n- Fixed a potential code execution vulnerability\n  (CVE-2019-12526, bsc#1156326)\n- Fixed HTTP Request Splitting in HTTP\n  message processing and information disclosure in\n  HTTP Digest Authentication\n  (CVE-2019-18678, CVE-2019-18679, bsc#1156323, bsc#1156324)\n- Fixed a security issue allowing a remote\n  client ability to cause use a buffer overflow when squid is\n  acting as reverse-proxy.\n  (CVE-2020-8449, CVE-2020-8450, bsc#1162687)\n- Fixed a security issue allowing for information\n  disclosure in FTP gateway (CVE-2019-12528, bsc#1162689)\n- Fixed a security issue in ext_lm_group_acl\n  when processing NTLM Authentication credentials.\n  (CVE-2020-8517, bsc#1162691)\n\n- Fixed Cross-Site Request Forgery in\n  HTTP Request processing (CVE-2019-18677, bsc#1156328)\n\n- Disable urn parsing and parsing of\n  unknown schemes (bsc#1156329, CVE-2019-12523, CVE-2019-18676)\n","status":"published","published":"2020-08-24T12:06:51Z","modified":"2025-05-02T04:08:43.365999Z","updated_at":"2026-11-02T15:53:47.634847Z"},{"id":"USN-4356-1","title":"squid, squid3 vulnerabilities","description":"Jeriko One discovered that Squid incorrectly handled certain Edge Side\nIncludes (ESI) responses. A malicious remote server could cause Squid to\ncrash, possibly poison the cache, or possibly execute arbitrary code.\n(CVE-2019-12519, CVE-2019-12521)\n\nIt was discovered that Squid incorrectly handled the hostname parameter to\ncachemgr.cgi when certain browsers are used. A remote attacker could\npossibly use this issue to inject HTML or invalid characters in the\nhostname parameter. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04\nLTS, and Ubuntu 19.10. (CVE-2019-18860)\n\nClément Berthaux and Florian Guilbert discovered that Squid incorrectly\nhandled Digest Authentication nonce values. A remote attacker could\nuse this issue to replay nonce values, or possibly execute arbitrary code.\n(CVE-2020-11945)\n","status":"published","published":"2020-05-13T11:37:20Z","modified":"2026-02-10T04:41:49Z","updated_at":"2026-11-02T16:58:14.547547Z"}]}}