A libxml-security-java security update has been released for Debian GNU/Linux 9 LTS to address an issue where the "secureValidation" property is not passed correctly when creating a KeyInfo from a KeyInfoReference element.

DLA 2767-1: libxml-security-java security update

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Debian LTS Advisory DLA-2767-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Markus Koschany
September 27, 2021   https://wiki.debian.org/LTS
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Package : libxml-security-java
Version : 1.5.8-2+deb9u1
CVE ID : CVE-2021-40690
Debian Bug : 994569

Apache Santuario, XML Security for Java, is vulnerable to an issue where the
"secureValidation" property is not passed correctly when creating a KeyInfo
from a KeyInfoReference element. This allows an attacker to abuse an XPath
Transform to extract any local .xml files in a RetrievalMethod element.

For Debian 9 stretch, this problem has been fixed in version
1.5.8-2+deb9u1.

We recommend that you upgrade your libxml-security-java packages.

For the detailed security status of libxml-security-java please refer to
its security tracker page at:
  https://security-tracker.debian.org/tracker/libxml-security-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