oss-security - [CVE-2018-11761] Apache Tika DoS XML Entity Expansion Vulnerability

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Message-ID: <CAC1dCwVx2Z1haCnvYBhH7nQRN4kYKjwkLfjsCbeFHv2tRcBonA@mail.gmail.com>
Date: Wed, 19 Sep 2018 08:44:41 -0400
From: Tim Allison <tallison@...che.org>
To: dev@...a.apache.org, user@...a.apache.org, announce@...che.org, 
	Apache Security Team <security@...che.org>, oss-security@...ts.openwall.com
Subject: [CVE-2018-11761] Apache Tika DoS XML Entity Expansion Vulnerability

CVE-2018-11761: Apache Tika Denial of Service via XML Entity Expansion
Vulnerability

Severity: Medium

Vendor:
The Apache Software Foundation

Versions Affected:
Apache Tika 0.1 to 1.18

Description:
Apache Tika's XML parsers were not configured to limit entity expansion.
They were therefore vulnerable to an entity expansion vulnerability which
can lead to a denial of service attack.

Mitigation:
Apache Tika users should upgrade to 1.19 or later

Credit:
This issue was discovered by Renfei (Brian) Wang of Amazon.

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