Medium severity5.5NVD Advisory· Published Aug 7, 2017· Updated Jun 17, 2026
CVE-2017-6420
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
19- osv-coords18 versionspkg:rpm/opensuse/clamav&distro=openSUSE%20Tumbleweedpkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP2pkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3pkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSSpkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-TERADATApkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSSpkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2pkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSSpkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Server%20for%20Raspberry%20Pi%2012%20SP2pkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012pkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/clamav&distro=SUSE%20OpenStack%20Cloud%206
< 0.103.3-1.4+ 17 more
- (no CPE)range: < 0.103.3-1.4
- (no CPE)range: < 0.99.3-33.5.1
- (no CPE)range: < 0.99.3-33.5.1
- (no CPE)range: < 0.99.3-0.20.3.2
- (no CPE)range: < 0.99.3-0.20.3.2
- (no CPE)range: < 0.99.3-0.20.3.2
- (no CPE)range: < 0.99.3-0.20.3.2
- (no CPE)range: < 0.99.3-33.5.1
- (no CPE)range: < 0.99.3-33.5.1
- (no CPE)range: < 0.99.3-33.5.1
- (no CPE)range: < 0.99.3-33.5.1
- (no CPE)range: < 0.99.3-33.5.1
- (no CPE)range: < 0.99.3-0.20.3.2
- (no CPE)range: < 0.99.3-33.5.1
- (no CPE)range: < 0.99.3-33.5.1
- (no CPE)range: < 0.99.3-33.5.1
- (no CPE)range: < 0.99.3-33.5.1
- (no CPE)range: < 0.99.3-33.5.1
Patches
Vulnerability mechanics
References
4- github.com/vrtadmin/clamav-devel/commit/dfc00cd3301a42b571454b51a6102eecf58407bcnvdIssue TrackingPatchThird Party Advisory
- github.com/varsleak/varsleak-vul/blob/master/clamav-vul/use-after-free/clamav-use-after-free-pe.mdnvdThird Party Advisory
- bugzilla.clamav.net/show_bug.cginvdPermissions Required
- security.gentoo.org/glsa/201804-16nvd
News mentions
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