CWE
416
Advisory Published
Updated

CVE-2017-6420: Use After Free

First published: Mon Aug 07 2017(Updated: )

The wwunpack function in libclamav/wwunpack.c in ClamAV 0.99.2 allows remote attackers to cause a denial of service (use-after-free) via a crafted PE file with WWPack compression.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
ClamAV=0.99.2

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Frequently Asked Questions

  • What is the severity of CVE-2017-6420?

    CVE-2017-6420 has a severity rating indicating it can lead to a denial of service due to a use-after-free vulnerability.

  • How do I fix CVE-2017-6420?

    To fix CVE-2017-6420, upgrade ClamAV to a version later than 0.99.2 where the vulnerability is patched.

  • What is the impact of exploiting CVE-2017-6420?

    Exploiting CVE-2017-6420 can cause ClamAV to crash, resulting in a denial of service for users.

  • What component is affected by CVE-2017-6420?

    CVE-2017-6420 affects the wwunpack function in the libclamav library of ClamAV software.

  • Who is primarily impacted by CVE-2017-6420?

    Users and systems relying on ClamAV 0.99.2 for malware detection and file scanning are primarily impacted by CVE-2017-6420.

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