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.
References (4)
Core 4
Core References
Permissions Required x_refsource_misc
https://bugzilla.clamav.net/show_bug.cgi?id=11798
Third Party Advisory x_refsource_misc
https://github.com/varsleak/varsleak-vul/blob/master/clamav-vul/use-after-free/clamav-use-after-free-pe.md
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/201804-16
Issue Tracking, Patch, Third Party Advisory x_refsource_misc
https://github.com/vrtadmin/clamav-devel/commit/dfc00cd3301a42b571454b51a6102eecf58407bc
Scores
CVSS v3
5.5
EPSS
0.0029
EPSS Percentile
52.1%
Attack Vector
LOCAL
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Details
CWE
CWE-416
Status
published
Products (1)
clamav/clamav
0.99.2
Published
Aug 07, 2017
Tracked Since
Feb 18, 2026