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[gentoo-announce] [ GLSA 202006-21 ] Apache Tomcat: Remote code execution

Posted on 15 June 2020
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 202006-21
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https://security.gentoo.org/
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Severity: Normal
Title: Apache Tomcat: Remote code execution
Date: June 15, 2020
Bugs: #724344
ID: 202006-21

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Synopsis
========
A vulnerability has been discovered in Apache Tomcat which could result
in the arbitrary execution of code.

Background
==========
Apache Tomcat is a Servlet-3.0/JSP-2.2 Container.

Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 www-servers/tomcat < 7.0.104:7 >= 7.0.104:7
< 8.5.55:8.5 >= 8.5.55:8.5

Description
===========
Apache Tomcat improperly handles deserialization of files under
specific circumstances.

Impact
======
A remote attacker could possibly execute arbitrary code with the
privileges of the process, or cause a Denial of Service condition.

Workaround
==========
There is no known workaround at this time.

Resolution
==========
All Apache Tomcat 7.x users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=www-servers/tomcat-7.0.104"

All Apache Tomcat 8.x users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=www-servers/tomcat-8.5.55"

References
==========
[ 1 ] CVE-2020-9484
https://nvd.nist.gov/vuln/detail/CVE-2020-9484
[ 2 ] Upstream advisory (7)
https://tomcat.apache.org/security-7.html#Fixed_in_Apache_Tomcat_7.0.=104
[ 3 ] Upstream advisory (8.5)
https://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.5.=55

Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

https://security.gentoo.org/glsa/202006-21

Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======
Copyright 2020 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5

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