{"id":"CVE-2020-8517","aliases":["ALPINE-CVE-2020-8517","CLSA-2021-1628782974","CLSA-2021-1632262221","CLSA-2021-1634925554","CLSA-2021-1634925634","CLSA-2025-1761575970","DEBIAN-CVE-2020-8517","EUVD-2020-29383","GHSA-8hwj-cjrf-5wh2","MGASA-2020-0106","SUSE-SU-2020:0487-1","SUSE-SU-2020:0493-1","SUSE-SU-2020:0661-1","SUSE-SU-2020:1134-1","SUSE-SU-2020:1156-1","SUSE-SU-2020:14460-1","UBUNTU-CVE-2020-8517","USN-4289-1","openSUSE-SU-2020:0307-1","openSUSE-SU-2020:0606-1","openSUSE-SU-2020:0623-1","openSUSE-SU-2024:11403-1"],"status":"published","title":"An issue was discovered in Squid before 4.10. Due to incorrect input validation, the NTLM...","description":"An issue was discovered in Squid before 4.10. Due to incorrect input validation, the NTLM authentication credentials parser in ext_lm_group_acl may write to memory outside the credentials buffer. On systems with memory access protections, this can result in the helper process being terminated unexpectedly. This leads to the Squid process also terminating and a denial of service for all clients using the proxy.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.06846,"percentile":0.94079,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20","CWE-787"],"published":"2020-02-04T19:54:31Z","modified":"2026-10-26T12:02:24Z","fixes":[{"ecosystem":"Alpine:v3.10","package":"squid","fixed_in":["4.10-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.11","package":"squid","fixed_in":["4.10-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.12","package":"squid","fixed_in":["4.10-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.13","package":"squid","fixed_in":["4.10-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.14","package":"squid","fixed_in":["4.10-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.15","package":"squid","fixed_in":["4.10-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.16","package":"squid","fixed_in":["4.10-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.17","package":"squid","fixed_in":["4.10-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.18","package":"squid","fixed_in":["4.10-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"squid","fixed_in":["4.10-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"squid","fixed_in":["4.10-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"squid","fixed_in":["4.10-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"squid","fixed_in":["4.10-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"squid","fixed_in":["4.10-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"squid","fixed_in":["4.10-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.8","package":"squid","fixed_in":["3.5.27-r4"],"sources":["osv"]},{"ecosystem":"Alpine:v3.9","package":"squid","fixed_in":["4.10-r0"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"squid","fixed_in":["4.10-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"squid","fixed_in":["4.10-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"squid","fixed_in":["4.10-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:16.04:LTS","package":"squid3","fixed_in":["3.5.12-1ubuntu7.10"],"sources":["osv"]},{"ecosystem":"Ubuntu:18.04:LTS","package":"squid3","fixed_in":["3.5.27-1ubuntu1.5"],"sources":["osv"]},{"ecosystem":"Ubuntu:20.04:LTS","package":"squid","fixed_in":["4.9-2ubuntu4"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.10","package":"squid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.11","package":"squid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.12","package":"squid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.13","package":"squid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.14","package":"squid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.15","package":"squid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.16","package":"squid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.17","package":"squid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.18","package":"squid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.19","package":"squid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.20","package":"squid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.21","package":"squid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.22","package":"squid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"squid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"squid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.8","package":"squid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.27-r4"}]}]},{"source":"osv","ecosystem":"Alpine:v3.9","package":"squid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10-r0"}]}]},{"source":"osv","ecosystem":"TuxCare:CentOS:6",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Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-8517"},{"url":"https://github.com/advisories/GHSA-8hwj-cjrf-5wh2"},{"url":"https://security.alpinelinux.org/vuln/CVE-2020-8517","tags":["advisory"]},{"url":"https://errata.cloudlinux.com/els6/CLSA-2021-1628782974.html","tags":["advisory"]},{"url":"https://errata.cloudlinux.com/els6/CLSA-2021-1632262221.html","tags":["advisory"]},{"url":"https://errata.cloudlinux.com/ol6/CLSA-2021-1634925554.html","tags":["advisory"]},{"url":"https://errata.cloudlinux.com/ol6/CLSA-2021-1634925634.html","tags":["advisory"]},{"url":"https://errata.tuxcare.com/els_os/debian10els/CLSA-2025-1761575970.html","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2020-8517","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2020-0106.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=26224","tags":["report"]},{"url":"http://www.squid-cache.org/Advisories/SQUID-2020_1.txt","tags":["web"]},{"url":"http://www.squid-cache.org/Advisories/SQUID-2020_2.txt","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2020/suse-su-20200487-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1162687","tags":["report"]},{"url":"https://bugzilla.suse.com/1162689","tags":["report"]},{"url":"https://bugzilla.suse.com/1162691","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2019-12528","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://www.suse.com/security/cve/CVE-2020-8517","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2020/suse-su-20200493-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2020/suse-su-20200661-1/","tags":["advisory"]},{"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://www.suse.com/security/cve/CVE-2019-12523","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-12526","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/support/update/announcement/2020/suse-su-20201134-1/","tags":["advisory"]},{"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-2019-18860","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-11945","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-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/1170423","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-2019-12520","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-12524","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-12525","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-2020-14059","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-15049","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2020-8517","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-4289-1","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-8517","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2019-12528","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-8449","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-8450","tags":["report"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/OSBD4IUE3J32BEBGOTEFYZCO2BC6SOBD/","tags":["advisory"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/AGFVFRNFEBM5GAYSO2Y6EUODQ7XBSWE3/","tags":["advisory"]},{"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-2020-8517","description":"An issue was discovered in Squid before 4.10. Due to incorrect input validation, the NTLM authentication credentials parser in ext_lm_group_acl may write to memory outside the credentials buffer. On systems with memory access protections, this can result in the helper process being terminated unexpectedly. This leads to the Squid process also terminating and a denial of service for all clients using the proxy.","status":"published","published":"2020-02-04T19:54:31Z","modified":"2024-08-04T10:03:46.372Z","updated_at":"2026-11-02T14:35:50.545879Z"}],"euvd":[{"id":"EUVD-2020-29383","description":"An issue was discovered in Squid before 4.10. Due to incorrect input validation, the NTLM authentication credentials parser in ext_lm_group_acl may write to memory outside the credentials buffer. On systems with memory access protections, this can result in the helper process being terminated unexpectedly. This leads to the Squid process also terminating and a denial of service for all clients using the proxy.","status":"published","published":"2020-02-04T19:54:31Z","modified":"2024-08-04T10:03:46Z","updated_at":"2026-11-03T03:07:57.14802Z"}],"ghsa":[{"id":"GHSA-8hwj-cjrf-5wh2","title":"An issue was discovered in Squid before 4.10. Due to incorrect input validation, the NTLM...","description":"An issue was discovered in Squid before 4.10. Due to incorrect input validation, the NTLM authentication credentials parser in ext_lm_group_acl may write to memory outside the credentials buffer. On systems with memory access protections, this can result in the helper process being terminated unexpectedly. This leads to the Squid process also terminating and a denial of service for all clients using the proxy.","status":"published","published":"2022-05-24T17:08:01Z","modified":"2023-01-29T05:01:19Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:44:47.423333Z"}],"nvd":[{"id":"CVE-2020-8517","description":"An issue was discovered in Squid before 4.10. Due to incorrect input validation, the NTLM authentication credentials parser in ext_lm_group_acl may write to memory outside the credentials buffer. On systems with memory access protections, this can result in the helper process being terminated unexpectedly. This leads to the Squid process also terminating and a denial of service for all clients using the proxy.","status":"published","published":"2020-02-04T20:15:14.857Z","modified":"2026-06-17T03:26:30.343Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-20","CWE-787"],"updated_at":"2026-11-02T14:05:53.837808Z"}],"osv":[{"id":"ALPINE-CVE-2020-8517","description":"An issue was discovered in Squid before 4.10. Due to incorrect input validation, the NTLM authentication credentials parser in ext_lm_group_acl may write to memory outside the credentials buffer. On systems with memory access protections, this can result in the helper process being terminated unexpectedly. This leads to the Squid process also terminating and a denial of service for all clients using the proxy.","status":"published","published":"2020-02-04T20:15:14.857Z","modified":"2026-10-26T11:17:55.186226075Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:27:48.11886Z"},{"id":"CVE-2020-8517","description":"An issue was discovered in Squid before 4.10. Due to incorrect input validation, the NTLM authentication credentials parser in ext_lm_group_acl may write to memory outside the credentials buffer. On systems with memory access protections, this can result in the helper process being terminated unexpectedly. This leads to the Squid process also terminating and a denial of service for all clients using the proxy.","status":"published","published":"2020-02-04T20:15:14.857Z","modified":"2026-10-24T10:31:00.627908529Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:17.663289Z"},{"id":"DEBIAN-CVE-2020-8517","description":"An issue was discovered in Squid before 4.10. Due to incorrect input validation, the NTLM authentication credentials parser in ext_lm_group_acl may write to memory outside the credentials buffer. On systems with memory access protections, this can result in the helper process being terminated unexpectedly. This leads to the Squid process also terminating and a denial of service for all clients using the proxy.","status":"published","published":"2020-02-04T20:15:14.857Z","modified":"2026-10-26T12:02:24.321831546Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:34.311861Z"},{"id":"UBUNTU-CVE-2020-8517","description":"An issue was discovered in Squid before 4.10. Due to incorrect input validation, the NTLM authentication credentials parser in ext_lm_group_acl may write to memory outside the credentials buffer. On systems with memory access protections, this can result in the helper process being terminated unexpectedly. This leads to the Squid process also terminating and a denial of service for all clients using the proxy.","status":"published","published":"2020-02-04T20:15:00Z","modified":"2026-02-04T02:42:56.40245Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:25.728622Z"},{"id":"CLSA-2021-1628782974","title":"Fix of CVE: CVE-2020-8450, CVE-2020-8517, CVE-2020-8449","description":"- CVE-2020-8449: fix improper HTTP request validation allowing access to \n  resources which are prohibited by security filters\n- CVE-2020-8450: fix incorrect buffer managment leading to buffer overflow\n- CVE-2020-8517: fix incorrect input validation allowing writing outside of buffer\n  and leading to denial of service","status":"published","published":"2021-08-12T15:42:54Z","modified":"2026-10-21T10:47:12.000486085Z","updated_at":"2026-11-02T15:43:39.801198Z"},{"id":"CLSA-2021-1632262221","title":"Fix of CVE: CVE-2020-8517, CVE-2021-28651, CVE-2020-15049, CVE-2020-8449, CVE-2020-8450, CVE-2020-24606, CVE-2020-25097, CVE-2020-11945, CVE-2020-14058","description":"- CVE-2020-15049: fix incorrect validation of Content-Length field leading to\n  Http smuggling and Poisoning attack\n- CVE-2020-14058: fix handling of unknown SSL errors which resulted in denial of\n  service\n- CVE-2020-25097: fix improper input validation allowing HTTP smuggling from\n  trusted client\n- CVE-2020-11945: fix nonce reference counter overflow allowing replay attack\n- CVE-2020-24606: fix handle of EOF in peerDigestHandleReply() leading to Denial\n  of service\n- CVE-2020-8517: fix incorrect input validation allowing writing outside of buffer\n  and leading to denial of service\n- CVE-2020-8449: fix improper HTTP request validation allowing access to \n  resources which are prohibited by security filters\n- CVE-2020-8450: fix incorrect buffer managment leading to buffer overflow\n- CVE-2021-28651: fix memory leak leading to denial of service","status":"published","published":"2021-09-21T22:10:21Z","modified":"2026-10-21T10:47:14.734923034Z","updated_at":"2026-11-02T15:43:39.801198Z"},{"id":"CLSA-2021-1634925554","title":"Fixed CVEs in squid: CVE-2020-8517, CVE-2020-8450, CVE-2020-8449","description":"- CVE-2020-8449: fix improper HTTP request validation allowing access to \n  resources which are prohibited by security filters\n- CVE-2020-8450: fix incorrect buffer managment leading to buffer overflow\n- CVE-2020-8517: fix incorrect input validation allowing writing outside of buffer\n  and leading to denial of service","status":"published","published":"2021-10-22T17:59:14Z","modified":"2026-10-21T10:47:02.318133266Z","updated_at":"2026-11-02T15:43:39.801198Z"},{"id":"CLSA-2021-1634925634","title":"Fixed 9 CVEs in squid34","description":"- CVE-2020-15049: fix incorrect validation of Content-Length field leading to\n  Http smuggling and Poisoning attack\n- CVE-2020-14058: fix handling of unknown SSL errors which resulted in denial of\n  service\n- CVE-2020-25097: fix improper input validation allowing HTTP smuggling from\n  trusted client\n- CVE-2020-11945: fix nonce reference counter overflow allowing replay attack\n- CVE-2020-24606: fix handle of EOF in peerDigestHandleReply() leading to Denial\n  of service\n- CVE-2020-8517: fix incorrect input validation allowing writing outside of buffer\n  and leading to denial of service\n- CVE-2020-8449: fix improper HTTP request validation allowing access to \n  resources which are prohibited by security filters\n- CVE-2020-8450: fix incorrect buffer managment leading to buffer overflow\n- CVE-2021-28651: fix memory leak leading to denial of service","status":"published","published":"2021-10-22T18:00:34Z","modified":"2026-10-21T10:46:44.702745805Z","updated_at":"2026-11-02T15:43:39.801198Z"},{"id":"CLSA-2025-1761575970","title":"Fix of 6 CVEs","description":"   * SECURITY UPDATE: potential Denial of Service via TLS connection\n     - debian/patches/CVE-2020-14058.patch: Fix sending of unknown validation\n       errors to cert validator\n     - CVE-2020-14058\n   * SECURITY UPDATE: improper Validation of Specified Index leads to Denial of\n     Service via TLS Handshake vulnerability\n     - debian/patches/CVE-2023-46724.patch: Fix validation of certificates with\n       CN=* due to Buffer UnderRead in SSL CN Parsing issue (#1523)\n     - CVE-2023-46724\n   * SECURITY UPDATE: denial of Service vulnerability in HTTP Chunked decoder due\n     to uncontrolled recursion bug\n     - debian/patches/CVE-2024-25111.patch: Fix infinite recursion when parsing\n       HTTP chunks, prevent progress in call chain by stopping HttpStateData\n       recursion\n     - CVE-2024-25111\n   * SECURITY UPDATE: denial of Service vulnerability in the NTLM authentication\n     credentials parser due to incorrect input validation\n     - debian/patches/CVE-2020-8517.patch: Fix incorrect input validation\n       allowing writing outside of buffer and leading to denial of service\n     - CVE-2020-8517\n   * SECURITY UPDATE: denial of Service vulnerability against HTTP header parsing\n     due to a Collapse of Data into Unsafe Value\n     - debian/patches/CVE-2024-25617.patch: Improve handling of expanding HTTP\n       header values to prevent DoS\n     - CVE-2024-25617\n   * SECURITY UPDATE: denial of Service vulnerability by a trusted server\n     - debian/rules: Disable ESI due to unfixed multiple\n       issues in ESI causing DoS by a trusted server\n     - debian/control: Remove dependencies used by ESI\n     - CVE-2024-45802","status":"published","published":"2025-10-27T14:39:39Z","modified":"2026-06-04T10:03:29.096718108Z","updated_at":"2026-11-02T15:43:42.427288Z"},{"id":"MGASA-2020-0106","title":"Updated squid packages fix security vulnerabilities","description":"Updated squid packages fix security vulnerabilities:\n\nJeriko One discovered that Squid incorrectly handled memory when connected\nto an FTP server. A remote attacker could possibly use this issue to obtain\nsensitive information from Squid memory (CVE-2019-12528).\n\nRegis Leroy discovered that Squid incorrectly handled certain HTTP requests.\nA remote attacker could possibly use this issue to access server resources\nprohibited by earlier security filters (CVE-2020-8449).\n\nGuido Vranken discovered that Squid incorrectly handled certain buffer\noperations when acting as a reverse proxy. A remote attacker could use this\nissue to cause Squid to crash, resulting in a denial of service, or possibly\nexecute arbitrary code (CVE-2020-8450).\n\nAaron Costello discovered that Squid incorrectly handled certain NTLM\nauthentication credentials. A remote attacker could possibly use this issue\nto cause Squid to crash, resulting in a denial of service (CVE-2020-8517).\n","status":"published","published":"2020-02-26T10:21:01Z","modified":"2026-04-16T04:43:10.521942049Z","updated_at":"2026-11-02T15:49:41.151324Z"},{"id":"openSUSE-SU-2020:0307-1","title":"Security update for squid","description":"This update for squid to version 4.10 fixes the following issues:\n\nSecurity issues fixed:\n\n- CVE-2019-12528: Fixed an information disclosure flaw in the FTP gateway (bsc#1162689).\n- CVE-2020-8449: Fixed a buffer overflow when squid is acting as reverse-proxy (bsc#1162687).\n- CVE-2020-8450: Fixed a buffer overflow when squid is acting as reverse-proxy (bsc#1162687).\n- CVE-2020-8517: Fixed a buffer overflow in ext_lm_group_acl when processing NTLM Authentication credentials (bsc#1162691).\n\nNon-security issue fixed:\n\n- Improved cache handling with chunked responses.\n\nThis update was imported from the SUSE:SLE-15:Update update project.","status":"published","published":"2020-03-05T23:16:01Z","modified":"2026-02-04T04:00:18.719008Z","updated_at":"2026-11-02T16:58:31.152112Z"},{"id":"openSUSE-SU-2020:0606-1","title":"Security update for squid","description":"This update for squid to version 4.10 fixes the following issues:\n\nSecurity issues fixed:\n\n- CVE-2019-12528: Fixed an information disclosure flaw in the FTP gateway (bsc#1162689).\n- CVE-2020-8449: Fixed a buffer overflow when squid is acting as reverse-proxy (bsc#1162687).\n- CVE-2020-8450: Fixed a buffer overflow when squid is acting as reverse-proxy (bsc#1162687).\n- CVE-2020-8517: Fixed a buffer overflow in ext_lm_group_acl when processing NTLM Authentication credentials (bsc#1162691).\n\nNon-security issue fixed:\n\n- Improved cache handling with chunked responses.\n\nThis update was imported from the SUSE:SLE-15:Update update project.","status":"published","published":"2020-05-03T10:32:46Z","modified":"2026-02-04T02:18:04.290161Z","updated_at":"2026-11-02T16:58:31.152112Z"},{"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-2020:0487-1","title":"Security update for squid","description":"This update for squid to version 4.10 fixes the following issues:\n\nSecurity issues fixed:\n\n- CVE-2019-12528: Fixed an information disclosure flaw in the FTP gateway (bsc#1162689).\n- CVE-2020-8449: Fixed a buffer overflow when squid is acting as reverse-proxy (bsc#1162687).\n- CVE-2020-8450: Fixed a buffer overflow when squid is acting as reverse-proxy (bsc#1162687).\n- CVE-2020-8517: Fixed a buffer overflow in ext_lm_group_acl when processing NTLM Authentication credentials (bsc#1162691).\n\nNon-security issue fixed:\n\n- Improved cache handling with chunked responses.\n","status":"published","published":"2020-02-26T10:43:20Z","modified":"2025-05-02T04:08:43.736121Z","updated_at":"2026-11-02T15:53:47.06185Z"},{"id":"SUSE-SU-2020:0493-1","title":"Security update for squid","description":"This update for squid to version 4.10 fixes the following issues:\n\nSecurity issues fixed:\n\n- CVE-2019-12528: Fixed an information disclosure flaw in the FTP gateway (bsc#1162689).\n- CVE-2020-8449: Fixed a buffer overflow when squid is acting as reverse-proxy (bsc#1162687).\n- CVE-2020-8450: Fixed a buffer overflow when squid is acting as reverse-proxy (bsc#1162687).\n- CVE-2020-8517: Fixed a buffer overflow in ext_lm_group_acl when processing NTLM Authentication credentials (bsc#1162691).\n\nNon-security issue fixed:\n\n- Improved cache handling with chunked responses.\n","status":"published","published":"2020-02-26T13:05:55Z","modified":"2026-02-04T02:39:33.404265Z","updated_at":"2026-11-02T15:53:47.06185Z"},{"id":"SUSE-SU-2020:0661-1","title":"Security update for squid","description":"This update for squid fixes the following issues:\n\n- CVE-2019-12528: Fixed an information disclosure flaw in the FTP gateway (bsc#1162689). \n- CVE-2019-12526: Fixed potential remote code execution during URN processing (bsc#1156326).\n- CVE-2019-12523,CVE-2019-18676: Fixed multiple improper validations in URI processing (bsc#1156329).\n- CVE-2019-18677: Fixed Cross-Site Request Forgery in HTTP Request processing (bsc#1156328).\n- CVE-2019-18678: Fixed incorrect message parsing which could have led to HTTP request splitting issue (bsc#1156323).\n- CVE-2019-18679: Fixed information disclosure when processing HTTP Digest Authentication (bsc#1156324).\n- CVE-2020-8449: Fixed a buffer overflow when squid is acting as reverse-proxy (bsc#1162687).\n- CVE-2020-8450: Fixed a buffer overflow when squid is acting as reverse-proxy (bsc#1162687).\n- CVE-2020-8517: Fixed a buffer overflow in ext_lm_group_acl when processing NTLM Authentication credentials (bsc#1162691).\t  \n","status":"published","published":"2020-03-12T16:01:37Z","modified":"2026-02-04T03:24:31.697905Z","updated_at":"2026-11-02T15:53:47.06185Z"},{"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-2020:14460-1","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-4289-1","title":"squid, squid3 vulnerabilities","description":"Jeriko One discovered that Squid incorrectly handled memory when connected\nto an FTP server. A remote attacker could possibly use this issue to obtain\nsensitive information from Squid memory. (CVE-2019-12528)\n\nRegis Leroy discovered that Squid incorrectly handled certain HTTP\nrequests. A remote attacker could possibly use this issue to access server\nresources prohibited by earlier security filters. (CVE-2020-8449)\n\nGuido Vranken discovered that Squid incorrectly handled certain buffer\noperations when acting as a reverse proxy. A remote attacker could use\nthis issue to cause Squid to crash, resulting in a denial of service, or\npossibly execute arbitrary code. (CVE-2020-8450)\n\nAaron Costello discovered that Squid incorrectly handled certain NTLM\nauthentication credentials. A remote attacker could possibly use this issue\nto cause Squid to crash, resulting in a denial of service. (CVE-2020-8517)\n","status":"published","published":"2020-02-20T15:17:45Z","modified":"2026-02-10T04:41:47Z","updated_at":"2026-11-02T16:58:14.547547Z"}]}}