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Vulnerability Intelligence

CVE-2017-6420 | Mondoo Vulnerability Intelligence

Vulnerability IntelligenceCVE-2017-6420

CVE-2017-6420

MEDIUM5.5

The wwunpack function in libclamav/wwunpack

Published Aug 7, 2017

Modified 1 years ago

Details

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

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://www.cve.org/CVERecord?id=CVE-2017-6420

CVSS Analysis

CVSS v3.0

5.5

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

RequiredUI:R

Scope

Scope

UnchangedS:U

Impact

Confidentiality

NoneC:N

Integrity

NoneI:N

Availability

HighA:H

5.5/CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Ecosystems

Timeline

PublishedAug 7, 2017

ModifiedAug 5, 2024