What is CVE-2017-6420?

CVE-2017-6420 is a medium-severity vulnerability in Clamav, classified under Use After Free. CVSS score: 5.5/10. Published 2017-08-07.

How severe is CVE-2017-6420?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Use After Free in Clamav

CVE-2017-6420

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.

Vulnerability class: Use-After-Free

EPSS: 0.014 (69.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Clamav — versions 0.99.2
N/a — versions n/a

Weakness classification (CWE)

CWE-416 — Use After Free

References

cve@mitre.org (Permissions Required, x_refsource_MISC)
cve@mitre.org (Third Party Advisory, x_refsource_MISC)
cve@mitre.org (vendor-advisory, x_refsource_GENTOO)
cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2017-6420?: CVE-2017-6420 is a medium-severity vulnerability in Clamav, classified under Use After Free. CVSS score: 5.5/10. Published 2017-08-07.
How severe is CVE-2017-6420?: Medium severity. CVSS v3 base score is 5.5 out of 10.