{"id":"CVE-2018-20533","details":"There is a NULL pointer dereference at ext/testcase.c (function testcase_str2dep_complex) in libsolvext.a in libsolv through 0.7.2 that will cause a denial of service.","modified":"2026-05-28T04:03:59.539857028Z","published":"2018-12-28T16:29:04.283Z","related":["SUSE-RU-2019:2742-1","SUSE-SU-2019:1972-1","SUSE-SU-2019:2030-1","SUSE-SU-2019:2265-1","SUSE-SU-2020:2660-1","openSUSE-SU-2019:1927-1"],"database_specific":{"unresolved_ranges":[{"vendor_product":"canonical:ubuntu_linux","source":"CPE_STRING","cpes":["cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*"],"extracted_events":[{"last_affected":"18.10"}]}]},"references":[{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00057.html"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:2290"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3916-1/"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1652599"},{"type":"FIX","url":"https://github.com/openSUSE/libsolv/pull/291"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/opensuse/libsolv","events":[{"introduced":"0"},{"last_affected":"1c0141962a9eef7f4bc1fdcac7099f3f6a95ec23"}],"database_specific":{"source":"CPE_RANGE","extracted_events":[{"introduced":"0"},{"last_affected":"0.7.2"}],"cpe":"cpe:2.3:a:opensuse:libsolv:*:*:*:*:*:*:*:*"}}],"versions":["0.7.2","0.7.1","0.7.0","0.6.35","0.6.34","0.6.33","0.6.32","0.6.31","0.6.30","0.6.29","0.6.28","0.6.27","0.6.26","0.6.25","0.6.24","0.6.23","0.6.22","0.6.21","0.6.20","0.6.19","0.6.18","0.6.17","0.6.16","0.6.15","0.6.14","0.6.13","0.6.12","0.6.11","0.6.10","0.6.9","0.6.8","0.6.7","0.6.6","0.6.5","0.6.4","BASE-SuSE-Code-13_1-Branch","BASE-SuSE-Code-12_3-Branch","BASE-SuSE-Code-12_2-Branch","BASE-SuSE-Code-12_1-Branch"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-20533.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}