CVE-2017-6420

Description

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.47%
Vendor Advisory gentoo.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://bugzilla.clamav.net/show_bug.cgi?id=11798 permissions required
https://github.com/varsleak/varsleak-vul/blob/master/clamav-vul/use-after-free/clamav-use-after-free-pe.md third party advisory
https://security.gentoo.org/glsa/201804-16 vendor advisory
https://github.com/vrtadmin/clamav-devel/commit/dfc00cd3301a42b571454b51a6102eecf58407bc issue tracking third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2017-6420?
CVE-2017-6420 has been scored as a medium severity vulnerability.
How to fix CVE-2017-6420?
To fix CVE-2017-6420, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-6420 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-6420 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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