{"id":"CVE-2021-28116","details":"Squid through 4.14 and 5.x through 5.0.5, in some configurations, allows information disclosure because of an out-of-bounds read in WCCP protocol data. This can be leveraged as part of a chain for remote code execution as nobody.","aliases":["GHSA-rgf3-9v3p-qp82"],"modified":"2026-05-18T05:52:49.376199836Z","published":"2021-03-09T22:15:12.880Z","related":["ALSA-2022:1939","SUSE-SU-2021:3334-1","SUSE-SU-2021:3485-1","openSUSE-SU-2021:1419-1","openSUSE-SU-2021:3485-1","openSUSE-SU-2024:11559-1"],"database_specific":{"unresolved_ranges":[{"extracted_events":[{"last_affected":"10.0"},{"last_affected":"11.0"}],"source":"CPE_FIELD","cpes":["cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*","cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*"],"vendor_product":"debian:debian_linux"},{"vendor_product":"fedoraproject:fedora","source":"CPE_FIELD","cpes":["cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*","cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*"],"extracted_events":[{"last_affected":"33"},{"last_affected":"34"}]}]},"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LSQ3U54ZCNXR44QRPW3AV2VCS6K3TKCF/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T4EPIWUZDJAXADDHVOPKRBTQHPBR6H66/"},{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2021/10/04/1"},{"type":"ADVISORY","url":"http://www.squid-cache.org/Versions/"},{"type":"ADVISORY","url":"https://github.com/squid-cache/squid/security/advisories/GHSA-rgf3-9v3p-qp82"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202105-14"},{"type":"ADVISORY","url":"https://www.debian.org/security/2022/dsa-5171"},{"type":"ADVISORY","url":"https://www.zerodayinitiative.com/advisories/ZDI-21-157/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/squid-cache/squid","events":[{"introduced":"0"},{"last_affected":"fa47a3bc4d382e28e7235d08750401b910e4b13a"},{"last_affected":"a115b4597afa7d6d9efa7cc83d001a1f7bcc17e2"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"4.14"},{"introduced":"5.0"},{"last_affected":"5.0.5"}],"source":"CPE_FIELD","cpe":"cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*"}}],"versions":["SQUID_4_14","SQUID_5_0_5","SQUID_4_13","SQUID_5_0_4","SQUID_4_12","SQUID_5_0_3","SQUID_5_0_2","SQUID_4_11","SQUID_5_0_1","SQUID_4_10","SQUID_4_9","SQUID_4_8","SQUID_4_7","M-staged-PR365","M-staged-PR370","M-staged-PR376","M-staged-PR375","SQUID_4_6","M-staged-PR373","M-staged-PR372","M-staged-PR319","M-staged-PR366","M-staged-PR351","M-staged-PR342","M-staged-PR364","M-staged-PR359","SQUID_4_5","M-staged-PR348","M-staged-PR345","SQUID_4_4","M-staged-PR314","M-staged-PR306","SQUID_4_3","M-staged-PR294","M-staged-PR299","M-staged-PR295","M-staged-PR293","M-staged-PR164","SQUID_4_2","M-staged-PR276","M-staged-PR274","SQUID_3_5_27","M-staged-PR264","M-staged-PR268","M-staged-PR267","M-staged-PR266","M-staged-PR258","M-staged-PR230","M-staged-PR255","M-staged-PR252","M-staged-PR229","M-staged-PR241","M-staged-PR239","M-staged-PR242","SQUID_4_1","M-staged-PR235","M-staged-PR238","M-staged-PR218","M-staged-PR237","M-staged-PR227","M-staged-PR202","M-staged-PR225","SQUID_4_0_25","M-staged-PR220","M-staged-PR221","M-staged-PR210","M-staged-PR209","M-staged-PR208","M-staged-PR198","M-staged-PR206","M-staged-PR182","M-staged-PR195","M-staged-PR199","M-staged-PR200","M-staged-PR196","M-staged-PR193","M-staged-PR181","M-staged-PR189","M-staged-PR176","M-staged-PR186","SQUID_4_0_24","M-staged-PR179","M-staged-PR170","M-staged-PR161","SQUID_4_0_23","SQUID_4_0_22","SQUID_4_0_21","SQUID_4_0_20","SQUID_4_0_19","SQUID_4_0_18","SQUID_4_0_17","SQUID_4_0_16","SQUID_4_0_15","SQUID_4_0_14","SQUID_4_0_13","SQUID_4_0_12","SQUID_4_0_11","SQUID_4_0_10","SQUID_4_0_9","SQUID_4_0_8","SQUID_4_0_7","SQUID_4_0_6","SQUID_4_0_5","SQUID_4_0_4","SQUID_4_0_3","SQUID_4_0_2","SQUID_4_0_1","take00","SQUID_3_0_RC1","SQUID_3_0_PRE7","SQUID_3_0_PRE6","SQUID_3_0_PRE5","SQUID_3_0_PRE4","SQUID_3_0_PRE3","SQUID_3_0_PRE2","SQUID_3_0_PRE1","HISTORIC_RELEASES"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-28116.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"}]}