CVE-2017-6420

CVSS V2 Medium 4.3 CVSS V3 Medium 5.5
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.
Overview
  • CVE ID
  • CVE-2017-6420
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Modified
  • Published Version
  • 2017-08-07T03:29:00
  • Last Modified Date
  • 2018-10-21T10:29:10
Weakness Enumerations
CWE URL
CWE-416 http://cwe.mitre.org/data/definitions/416.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:clamav:clamav:0.99.2:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 4.3
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • REQUIRED
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 5.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://github.com/vrtadmin/clamav-devel/commit/dfc00cd3301a42b571454b51a6102eecf58407bc Issue Tracking Patch Third Party Advisory
https://github.com/varsleak/varsleak-vul/blob/master/clamav-vul/use-after-free/clamav-use-after-free-pe.md Third Party Advisory
https://bugzilla.clamav.net/show_bug.cgi?id=11798 Permissions Required
https://security.gentoo.org/glsa/201804-16
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2017-6420
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-6420
History
Created Old Value New Value Data Type Notes
2022-05-10 18:03:01 Added to TrackCVE
2022-12-02 19:24:34 2017-08-07T03:29Z 2017-08-07T03:29:00 CVE Published Date updated
2022-12-02 19:24:34 2018-10-21T10:29:10 CVE Modified Date updated
2022-12-02 19:24:34 Modified Vulnerability Status updated