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Date: Wed, 20 Jul 2022 10:49:26 +0200
From: Moritz Muehlenhoff <jmm@...til.org>
To: oss-security@...ts.openwall.com
Cc: mjc@...che.org
Subject: Re: CVE-2022-34169: Apache Xalan Java XSLT library is
 vulnerable to an integer truncation issue when processing malicious XSLT
 stylesheets

On Tue, Jul 19, 2022 at 02:21:40PM -0500, John Helmert III wrote:
> On Tue, Jul 19, 2022 at 05:37:46PM +0000, Mark J. Cox wrote:
> > Description:
> > 
> > The Apache Xalan Java XSLT library is vulnerable to an integer truncation issue when processing malicious XSLT stylesheets. This can be used to corrupt Java class files generated by the internal XSLTC compiler and execute arbitrary Java bytecode.
> > 
> > The Apache Xalan Java project is dormant and in the process of being retired. No future releases of Apache Xalan Java to address this issue are expected.
> > 
> > Note: Java runtimes (such as OpenJDK) include repackaged copies of Xalan.
> > 
> > Credit:
> > 
> > Reported by Felix Wilhelm, Google Project Zero
> > 
> > References:
> > 
> > https://lists.apache.org/thread/2qvl7r43wb4t8p9dd9om1bnkssk07sn8
> > 
> 
> Hi, is there any available patch or bug report? The reference here
> only seems to be a discussion of the retirement of xalan-j, rather
> than the vulnerability.

This seems to be the patch for the Xalan copy vendored in OpenJDK:
https://github.com/openjdk/jdk/commit/41ef2b249073450172e11163a4d05762364b1297

Cheers,
        Moritz

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