------------------------------------------------------------------------- Debian LTS Advisory DLA-2507-1 debian-lts@lists.debian.org https://www.debian.org/lts/security/ Markus Koschany December 31, 2020 https://wiki.debian.org/LTS ------------------------------------------------------------------------- Package : libxstream-java Version : 1.4.11.1-1+deb9u1 CVE ID : CVE-2020-26258 CVE-2020-26259 Debian Bug : 977625 977624 Several security vulnerabilities were discovered in XStream, a Java library to serialize objects to XML and back again. CVE-2020-26258 XStream is vulnerable to a Server-Side Forgery Request which can be activated when unmarshalling. The vulnerability may allow a remote attacker to request data from internal resources that are not publicly available only by manipulating the processed input stream. CVE-2020-26259 Xstream is vulnerable to an Arbitrary File Deletion on the local host when unmarshalling. The vulnerability may allow a remote attacker to delete arbitrary known files on the host as long as the executing process has sufficient rights only by manipulating the processed input stream. For Debian 9 stretch, these problems have been fixed in version 1.4.11.1-1+deb9u1. We recommend that you upgrade your libxstream-java packages. For the detailed security status of libxstream-java please refer to its security tracker page at: https://security-tracker.debian.org/tracker/libxstream-java Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS
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