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.

CVSS v3 5.5 MEDIUM
CVSS v2.0 4.3 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector : AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:N/I:N/A:P

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
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://github.com/vrtadmin/clamav-devel/commit/dfc00cd3301a42b571454b51a6102eecf58407bc	Issue Tracking Patch Third Party Advisory
https://security.gentoo.org/glsa/201804-16
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://github.com/vrtadmin/clamav-devel/commit/dfc00cd3301a42b571454b51a6102eecf58407bc	Issue Tracking Patch Third Party Advisory
https://security.gentoo.org/glsa/201804-16

Configurations

Configuration 1 (hide)

cpe:2.3:a:clamav:clamav:0.99.2:*:*:*:*:*:*:*

History

No history.

Information

Published : 2017-08-07 03:29

Updated : 2025-04-20 01:37

NVD link : CVE-2017-6420

Mitre link : CVE-2017-6420

CVE.ORG link : CVE-2017-6420

JSON object : View

Products Affected

clamav

clamav

CWE

CWE-416

Use After Free

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