CVE-2019-6493

CVSS V2 Low 2.1 CVSS V3 Medium 5.5

Description

SmartDefragDriver.sys (2.0) in IObit Smart Defrag 6 never frees an executable kernel pool that is allocated with user defined bytes and size when IOCTL 0x9C401CC0 is called. This kernel pointer can be leaked if the kernel pool becomes a "big" pool.

Overview

CVE ID
CVE-2019-6493

Assigner
cve@mitre.org

Vulnerability Status
Analyzed

Published Version
2019-04-11T20:29:00

Last Modified Date
2020-08-24T17:37:01

Weakness Enumerations

CWE	URL
CWE-401	http://cwe.mitre.org/data/definitions/401.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:iobit:smart_defrag:6:::::::*	1	OR

CVSS Version 2

Version
2.0

Vector String
AV:L/AC:L/Au:N/C:P/I:N/A:N

Access Vector
LOCAL

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
PARTIAL

Integrity Impact
NONE

Availability Impact
NONE

Base Score
2.1

Severity
LOW

Exploitability Score
3.9

Impact Score
2.9

CVSS Version 3

Version
3.0

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

Attack Vector
LOCAL

Attack Compatibility
LOW

Privileges Required
LOW

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
NONE

Base Score
5.5

Base Severity
MEDIUM

Exploitability Score
1.8

Impact Score
3.6

References

Reference URL	Reference Tags
https://www.iobit.com/en/iobitsmartdefrag.php	Product Vendor Advisory
https://downwithup.github.io/CVEPosts.html	Exploit Vendor Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2019-6493
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-6493

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 17:16:57				Added to TrackCVE
2022-12-03 19:34:05	2019-04-11T20:29Z	2019-04-11T20:29:00	CVE Published Date	updated
2022-12-03 19:34:05		2020-08-24T17:37:01	CVE Modified Date	updated
2022-12-03 19:34:05		Analyzed	Vulnerability Status	updated