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Secunia Research 2018/07/12
Clam AntiVirus "parsehwp3_paragraph()"
Denial of Service Vulnerability
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Table of Contents
Affected Software....................................................1
Severity.............................................................2
Description of Vulnerability.........................................3
Solution.............................................................4
Time Table...........................................................5
Credits..............................................................6
References...........................................................7
About Flexera........................................................8
Verification.........................................................9
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1) Affected Software
* Clam AntiVirus versions prior to 0.100.1.
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2) Severity
Rating: Moderately critical
Impact: Denial of Service
Where: From remote
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3) Description of Vulnerability
Secunia Research has discovered a vulnerability in Clam AntiVirus,
which can be exploited by malicious people to cause a DoS (Denial of
Service).
1) An integer overflow error within the "parsehwp3_paragraph()"
function (libclamav/hwp.c) can be exploited to trigger an infinite
loop via a specially crafted Hangul Word Processor file.
The vulnerability is confirmed in version 0.100.0 and reported in
versions prior to 0.100.1.
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4) Solution
Update to version 0.100.1.
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5) Time Table
2018/05/18 - Maintainer contacted with the vulnerability details.
2018/05/21 - Maintainer confirmed the vulnerability.
2018/07/09 - Maintainer released a fix.
2018/07/11 - Release of Secunia Advisory SA82000.
2018/07/12 - Public disclosure of Secunia Research Advisory.
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6) Credits
Laurent Delosieres, Secunia Research at Flexera.
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7) References
The Common Vulnerabilities and Exposures (CVE) project has assigned
the CVE-2018-0360 identifier for the vulnerability.
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8) About Flexera
Flexera helps application producers and enterprises increase
application usage and the value they derive from their software.
http://www.flexera.com/enterprise/company/about/
Flexera delivers market-leading Software Vulnerability Management
solutions enabling enterprises to proactively identify and
remediate software vulnerabilities, effectively reducing the risk of
costly security breaches.
http://www.flexera.com/enterprise/products/
Flexera supports and contributes to the community in several
ways. We have always believed that reliable vulnerability
intelligence and tools to aid identifying and fixing vulnerabilities
should be freely available for consumers to ensure that users,
who care about their online privacy and security, can stay secure.
Only a few vendors address vulnerabilities in a proper way and help
users get updated and stay secure. End-users (whether private
individuals or businesses) are otherwise left largely alone, and
that is why back in 2002, Secunia Research started investigating,
coordinating disclosure and verifying software vulnerabilities.
In 2016, Secunia Research became a part of Flexera and today
our in-house software vulnerability research remains the core of
the Software Vulnerability Management products at Flexera.
https://secuniaresearch.flexera.com/community/research/
The public Secunia Advisory database contains information for
researchers, security enthusiasts, and consumers to lookup individual
products and vulnerabilities and assess, whether they need to take
any actions to secure their systems or whether a given vulnerability
has already been discovered.
https://secuniaresearch.flexera.com/community/advisories/
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9) Verification
Please verify this advisory by visiting the website:
https://secuniaresearch.flexera.com/secunia_research/2018-12
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