Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 63.8%
CVSS Severity
CVSS v3 Score 5.5
CVSS v2 Score 4.3
References
- https://bugzilla.clamav.net/show_bug.cgi?id=11798
- https://github.com/varsleak/varsleak-vul/blob/master/clamav-vul/use-after-free/clamav-use-after-free-pe.md
- https://github.com/vrtadmin/clamav-devel/commit/dfc00cd3301a42b571454b51a6102eecf58407bc
- https://security.gentoo.org/glsa/201804-16
- https://bugzilla.clamav.net/show_bug.cgi?id=11798
- https://github.com/varsleak/varsleak-vul/blob/master/clamav-vul/use-after-free/clamav-use-after-free-pe.md
- https://github.com/vrtadmin/clamav-devel/commit/dfc00cd3301a42b571454b51a6102eecf58407bc
- https://security.gentoo.org/glsa/201804-16