CVE-2021-43859
Estado: ModificadaAlta (7.5)—
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.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 7.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 7.93%
- Percentil entre todas las CVEs puntuadas: 95
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (11)
Debian — Debian LinuxFedoraproject — FedoraJenkins — JenkinsOracle — Commerce Guided SearchOracle — Communications BRM - Elastic Charging EngineOracle — Communications Cloud Native Core Automated Test SuiteOracle — Communications Diameter Intelligence HUBOracle — Communications Policy ManagementOracle — Flexcube Private BankingOracle — Retail Xstore Point OF ServiceXstream — Xstream
CWE
- CWE-400
- CWE-400
Referencias
- http://www.openwall.com/lists/oss-security/2022/02/09/1
- https://github.com/x-stream/xstream/commit/e8e88621ba1c85ac3b8620337dd672e0c0c3a846
- https://github.com/x-stream/xstream/security/advisories/GHSA-rmr5-cpv2-vgjf
- https://lists.debian.org/debian-lts-announce/2022/02/msg00018.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VACQYG356OHUTD5WQGAQ4L2TTFTAV3SJ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XODFRE2ZL64FICBJDOPWOLPTSSAI4U7X/
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://x-stream.github.io/CVE-2021-43859.html
- http://www.openwall.com/lists/oss-security/2022/02/09/1
- https://github.com/x-stream/xstream/commit/e8e88621ba1c85ac3b8620337dd672e0c0c3a846
- https://github.com/x-stream/xstream/security/advisories/GHSA-rmr5-cpv2-vgjf
- https://lists.debian.org/debian-lts-announce/2022/02/msg00018.html
- https://lists.debian.org/debian-lts-announce/2024/12/msg00023.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VACQYG356OHUTD5WQGAQ4L2TTFTAV3SJ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XODFRE2ZL64FICBJDOPWOLPTSSAI4U7X/
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://x-stream.github.io/CVE-2021-43859.html
JSON original (NVD)
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