ID de Prueba:	1.3.6.1.4.1.25623.1.0.892769
Categoría:	Debian Local Security Checks
Título:	Debian LTS: Security Advisory for libxstream-java (DLA-2769-1)
Resumen:	The remote host is missing an update for the 'libxstream-java'; package(s) announced via the DLA-2769-1 advisory.
Descripción:	Summary: The remote host is missing an update for the 'libxstream-java' package(s) announced via the DLA-2769-1 advisory. Vulnerability Insight: Multiple security vulnerabilities have been discovered in XStream, a Java library to serialize objects to XML and back again. These vulnerabilities may allow a remote attacker to load and execute arbitrary code from a remote host only by manipulating the processed input stream. XStream itself sets up a whitelist by default now, i.e. it blocks all classes except those types it has explicit converters for. It used to have a blacklist by default, i.e. it tried to block all currently known critical classes of the Java runtime. Main reason for the blacklist were compatibility, it allowed to use newer versions of XStream as drop-in replacement. However, this approach has failed. A growing list of security reports has proven, that a blacklist is inherently unsafe, apart from the fact that types of 3rd libraries were not even considered. A blacklist scenario should be avoided in general, because it provides a false sense of security. See also [link moved to references] Affected Software/OS: 'libxstream-java' package(s) on Debian Linux. Solution: For Debian 9 stretch, these problems have been fixed in version 1.4.11.1-1+deb9u4. We recommend that you upgrade your libxstream-java packages. CVSS Score: 6.5 CVSS Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P
Referencia Cruzada:	Common Vulnerability Exposure (CVE) ID: CVE-2021-39139 Common Vulnerability Exposure (CVE) ID: CVE-2021-39140 Common Vulnerability Exposure (CVE) ID: CVE-2021-39141 Common Vulnerability Exposure (CVE) ID: CVE-2021-39144 Common Vulnerability Exposure (CVE) ID: CVE-2021-39145 Common Vulnerability Exposure (CVE) ID: CVE-2021-39146 Common Vulnerability Exposure (CVE) ID: CVE-2021-39147 Common Vulnerability Exposure (CVE) ID: CVE-2021-39148 Common Vulnerability Exposure (CVE) ID: CVE-2021-39149 Common Vulnerability Exposure (CVE) ID: CVE-2021-39150 Common Vulnerability Exposure (CVE) ID: CVE-2021-39151 Common Vulnerability Exposure (CVE) ID: CVE-2021-39152 Common Vulnerability Exposure (CVE) ID: CVE-2021-39153 Common Vulnerability Exposure (CVE) ID: CVE-2021-39154
Copyright	Copyright (C) 2021 Greenbone Networks GmbH

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