{"id":"CVE-2019-18679","details":"An issue was discovered in Squid 2.x, 3.x, and 4.x through 4.8. Due to incorrect data management, it is vulnerable to information disclosure when processing HTTP Digest Authentication. Nonce tokens contain the raw byte value of a pointer that sits within heap memory allocation. This information reduces ASLR protections and may aid attackers isolating memory areas to target for remote code execution attacks.","modified":"2026-07-08T05:54:57.822749021Z","published":"2019-11-26T17:15:13.047Z","related":["ALSA-2020:4743","SUSE-SU-2019:2975-1","SUSE-SU-2019:3067-1","SUSE-SU-2020:0661-1","SUSE-SU-2020:14460-1","openSUSE-SU-2019:2540-1","openSUSE-SU-2019:2541-1","openSUSE-SU-2024:11403-1"],"database_specific":{"unresolved_ranges":[{"extracted_events":[{"introduced":"2.0"},{"last_affected":"2.7"}],"source":"CPE_RANGE","vendor_product":"squid-cache:squid","cpes":["cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*"]},{"vendor_product":"canonical:ubuntu_linux","cpes":["cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*","cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*","cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*","cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"16.04"},{"last_affected":"16.04"},{"introduced":"18.04"},{"last_affected":"18.04"},{"introduced":"19.04"},{"last_affected":"19.04"},{"introduced":"19.10"},{"last_affected":"19.10"}],"source":"CPE_STRING"},{"source":"CPE_STRING","vendor_product":"debian:debian_linux","cpes":["cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"8.0"},{"last_affected":"8.0"}]},{"vendor_product":"fedoraproject:fedora","cpes":["cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*","cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"30"},{"last_affected":"30"},{"introduced":"31"},{"last_affected":"31"}],"source":"CPE_STRING"},{"extracted_events":[{"introduced":"2.7-stable2"},{"last_affected":"2.7-stable2"},{"introduced":"2.7-stable3"},{"last_affected":"2.7-stable3"},{"introduced":"2.7-stable4"},{"last_affected":"2.7-stable4"},{"introduced":"2.7-stable5"},{"last_affected":"2.7-stable5"},{"introduced":"2.7-stable6"},{"last_affected":"2.7-stable6"},{"introduced":"2.7-stable7"},{"last_affected":"2.7-stable7"},{"introduced":"2.7-stable8"},{"last_affected":"2.7-stable8"},{"introduced":"2.7-stable9"},{"last_affected":"2.7-stable9"}],"source":"CPE_STRING","vendor_product":"squid-cache:squid","cpes":["cpe:2.3:a:squid-cache:squid:2.7:stable2:*:*:*:*:*:*","cpe:2.3:a:squid-cache:squid:2.7:stable3:*:*:*:*:*:*","cpe:2.3:a:squid-cache:squid:2.7:stable4:*:*:*:*:*:*","cpe:2.3:a:squid-cache:squid:2.7:stable5:*:*:*:*:*:*","cpe:2.3:a:squid-cache:squid:2.7:stable6:*:*:*:*:*:*","cpe:2.3:a:squid-cache:squid:2.7:stable7:*:*:*:*:*:*","cpe:2.3:a:squid-cache:squid:2.7:stable8:*:*:*:*:*:*","cpe:2.3:a:squid-cache:squid:2.7:stable9:*:*:*:*:*:*"]}]},"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MTM74TU2BSLT5B3H4F3UDW53672NVLMC/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UEMOYTMCCFWK5NOXSXEIH5D2VGWVXR67/"},{"type":"ADVISORY","url":"http://www.squid-cache.org/Advisories/SQUID-2019_11.txt"},{"type":"ADVISORY","url":"http://www.squid-cache.org/Versions/v4/changesets/squid-4-671ba97abe929156dc4c717ee52ad22fba0f7443.patch"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2019/12/msg00011.html"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202003-34"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4213-1/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2020/dsa-4682"},{"type":"REPORT","url":"https://bugzilla.suse.com/show_bug.cgi?id=1156324"},{"type":"FIX","url":"https://github.com/squid-cache/squid/pull/491"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/squid-cache/squid","events":[{"introduced":"0"},{"last_affected":"6cfeb300caf423ff49a0511d8bd43a56f3418273"},{"last_affected":"fede82b3e7aa1f12a91bade17f6ac0d4c7463e0a"}],"database_specific":{"source":"CPE_RANGE","cpe":"cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"3.0"},{"last_affected":"3.5.28"},{"introduced":"4.0"},{"last_affected":"4.8"}]}}],"versions":["SQUID_4_8","SQUID_4_7","SQUID_4_6","SQUID_4_5","SQUID_4_4","SQUID_3_5_28","SQUID_4_3","SQUID_4_2","SQUID_4_1","SQUID_4_0_25","SQUID_4_0_24","SQUID_4_0_23","SQUID_4_0_22","SQUID_4_0_21","SQUID_3_5_26","SQUID_4_0_20","SQUID_3_5_25","SQUID_4_0_19","SQUID_3_5_24","SQUID_4_0_18","SQUID_3_5_23","SQUID_4_0_17","SQUID_4_0_16","SQUID_3_5_22","SQUID_4_0_15","SQUID_3_5_21","SQUID_4_0_14","SQUID_4_0_13","SQUID_3_5_20","SQUID_4_0_12","SQUID_4_0_11","SQUID_3_5_19","SQUID_4_0_10","SQUID_3_5_18","SQUID_3_5_17","SQUID_4_0_9","SQUID_3_5_16","SQUID_4_0_8","SQUID_3_5_15","SQUID_4_0_7","SQUID_3_5_14","SQUID_4_0_6","SQUID_4_0_5","SQUID_3_5_13","SQUID_4_0_4","SQUID_3_5_12","SQUID_4_0_3","SQUID_3_5_11","SQUID_4_0_2","SQUID_4_0_1","SQUID_3_5_10","SQUID_3_5_9","SQUID_3_5_8","SQUID_3_5_7","SQUID_3_5_6","SQUID_3_5_5","SQUID_3_5_4","SQUID_3_5_3","SQUID_3_5_2","SQUID_3_5_1","SQUID_3_5_0_4","SQUID_3_5_0_3","SQUID_3_5_0_2","SQUID_3_5_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/cve-osv-conversion/osv-output/CVE-2019-18679.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:H/I:N/A:N"}]}