Test ID:	1.3.6.1.4.1.25623.1.0.892924
Category:	Debian Local Security Checks
Title:	Debian: Security Advisory (DLA-2924-1)
Summary:	The remote host is missing an update for the Debian 'libxstream-java' package(s) announced via the DLA-2924-1 advisory.
Description:	Summary: The remote host is missing an update for the Debian 'libxstream-java' package(s) announced via the DLA-2924-1 advisory. Vulnerability Insight: It was discovered that there was a potential remote denial of service (DoS) attack in XStream, a Java library used to serialize objects to XML and back again. An attacker could have consumed 100% of the CPU resources, but the library now monitors and accumulates the time it takes to add elements to collections, and throws an exception if a set threshold is exceeded. CVE-2021-43859 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. For Debian 9 Stretch, these problems have been fixed in version 1.4.11.1-1+deb9u5. We recommend that you upgrade your libxstream-java packages. Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: [link moved to references] Affected Software/OS: 'libxstream-java' package(s) on Debian 9. Solution: Please install the updated package(s). CVSS Score: 5.0 CVSS Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2021-43859 https://github.com/x-stream/xstream/security/advisories/GHSA-rmr5-cpv2-vgjf https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VACQYG356OHUTD5WQGAQ4L2TTFTAV3SJ/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XODFRE2ZL64FICBJDOPWOLPTSSAI4U7X/ https://github.com/x-stream/xstream/commit/e8e88621ba1c85ac3b8620337dd672e0c0c3a846 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 https://lists.debian.org/debian-lts-announce/2022/02/msg00018.html http://www.openwall.com/lists/oss-security/2022/02/09/1
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