bugtraq - [CVE-2018-8013] Apache Batik information disclosure vulnerability

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Date: Wed, 23 May 2018 13:16:00 +0100
From: "Simon Steiner" <simonsteiner1984@...il.com>
To: <general@...graphics.apache.org>, <batik-dev@...graphics.apache.org>,
  <batik-users@...graphics.apache.org>, <oss-security@...ts.openwall.com>,
  <bugtraq@...urityfocus.com>, <security-reports@...mle.com>,
  <security@...che.org>
Subject: [CVE-2018-8013] Apache Batik information disclosure vulnerability

CVE-2018-8013:
        Apache Batik information disclosure vulnerability

Severity:
        Medium

Vendor:
        The Apache Software Foundation

Versions Affected:
        Batik 1.0 - 1.9.1
 
Description:
        When deserializing subclass of `AbstractDocument`, the class takes a
string from the inputStream as the class name which then use it to call the
no-arg constructor of the class.
        Fix was to check the class type before calling newInstance in
deserialization.

Mitigation:
        Users should upgrade to Batik 1.10+

Credit:
        This issue was independently reported by Man Yue Mo.

References:
        http://xmlgraphics.apache.org/security.html

The Apache XML Graphics team.