{"id":"CVE-2021-43859","details":"XStream is an open source java library to serialize objects to XML and back again. Versions prior to 1.4.19 may allow a remote attacker to allocate 100% CPU time on the target system depending on CPU type or parallel execution of such a payload resulting in a denial of service only by manipulating the processed input stream. XStream 1.4.19 monitors and accumulates the time it takes to add elements to collections and throws an exception if a set threshold is exceeded. Users are advised to upgrade as soon as possible. Users unable to upgrade may set the NO_REFERENCE mode to prevent recursion. See GHSA-rmr5-cpv2-vgjf for further details on a workaround if an upgrade is not possible.","aliases":["BIT-jenkins-2021-43859","GHSA-rmr5-cpv2-vgjf"],"modified":"2026-05-15T12:14:09.909046608Z","published":"2022-02-01T12:15:08.080Z","related":["SUSE-SU-2022:0817-1","openSUSE-SU-2022:0817-1","openSUSE-SU-2024:11809-1"],"database_specific":{"unresolved_ranges":[{"cpes":["cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"],"source":"CPE_FIELD","extracted_events":[{"last_affected":"9.0"}],"vendor_product":"debian:debian_linux"},{"vendor_product":"fedoraproject:fedora","source":"CPE_FIELD","extracted_events":[{"last_affected":"34"},{"last_affected":"35"}],"cpes":["cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*","cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*"]},{"cpes":["cpe:2.3:a:oracle:commerce_guided_search:11.3.2:*:*:*:*:*:*:*"],"source":"CPE_FIELD","extracted_events":[{"last_affected":"11.3.2"}],"vendor_product":"oracle:commerce_guided_search"},{"vendor_product":"oracle:communications_brm_-_elastic_charging_engine","source":"CPE_FIELD","extracted_events":[{"fixed":"12.0.0.4.6"},{"last_affected":"12.0.0.5.0"}],"cpes":["cpe:2.3:a:oracle:communications_brm_-_elastic_charging_engine:*:*:*:*:*:*:*:*","cpe:2.3:a:oracle:communications_brm_-_elastic_charging_engine:12.0.0.5.0:*:*:*:*:*:*:*"]},{"vendor_product":"oracle:communications_cloud_native_core_automated_test_suite","source":"CPE_FIELD","extracted_events":[{"last_affected":"1.9.0"}],"cpes":["cpe:2.3:a:oracle:communications_cloud_native_core_automated_test_suite:1.9.0:*:*:*:*:*:*:*"]},{"cpes":["cpe:2.3:a:oracle:communications_diameter_intelligence_hub:*:*:*:*:*:*:*:*"],"source":"CPE_FIELD","extracted_events":[{"introduced":"8.0.0"},{"last_affected":"8.1.0"},{"introduced":"8.2.0"},{"last_affected":"8.2.6"}],"vendor_product":"oracle:communications_diameter_intelligence_hub"},{"vendor_product":"oracle:communications_policy_management","extracted_events":[{"last_affected":"12.6.0.0.0"}],"source":"CPE_FIELD","cpes":["cpe:2.3:a:oracle:communications_policy_management:12.6.0.0.0:*:*:*:*:*:*:*"]},{"vendor_product":"oracle:flexcube_private_banking","source":"CPE_FIELD","extracted_events":[{"last_affected":"12.1.0"}],"cpes":["cpe:2.3:a:oracle:flexcube_private_banking:12.1.0:*:*:*:*:*:*:*"]},{"vendor_product":"oracle:retail_xstore_point_of_service","source":"CPE_FIELD","extracted_events":[{"last_affected":"16.0.6"},{"last_affected":"17.0.4"},{"last_affected":"18.0.3"},{"last_affected":"19.0.2"},{"last_affected":"20.0.1"}],"cpes":["cpe:2.3:a:oracle:retail_xstore_point_of_service:16.0.6:*:*:*:*:*:*:*","cpe:2.3:a:oracle:retail_xstore_point_of_service:17.0.4:*:*:*:*:*:*:*","cpe:2.3:a:oracle:retail_xstore_point_of_service:18.0.3:*:*:*:*:*:*:*","cpe:2.3:a:oracle:retail_xstore_point_of_service:19.0.2:*:*:*:*:*:*:*","cpe:2.3:a:oracle:retail_xstore_point_of_service:20.0.1:*:*:*:*:*:*:*"]}]},"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/12/msg00023.html"},{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2022/02/09/1"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2022/02/msg00018.html"},{"type":"FIX","url":"https://github.com/x-stream/xstream/commit/e8e88621ba1c85ac3b8620337dd672e0c0c3a846"},{"type":"FIX","url":"https://www.oracle.com/security-alerts/cpuapr2022.html"},{"type":"FIX","url":"https://www.oracle.com/security-alerts/cpujul2022.html"},{"type":"ARTICLE","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VACQYG356OHUTD5WQGAQ4L2TTFTAV3SJ/"},{"type":"ARTICLE","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XODFRE2ZL64FICBJDOPWOLPTSSAI4U7X/"},{"type":"EVIDENCE","url":"https://github.com/x-stream/xstream/security/advisories/GHSA-rmr5-cpv2-vgjf"},{"type":"EVIDENCE","url":"https://x-stream.github.io/CVE-2021-43859.html"}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}