CVE-2019-6493 — MEDIUM (5.5)

Vulnerability 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.

CVSS Score

5.5

MEDIUM

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Iobit	Smart Defrag	6

Related Weaknesses (CWE)

CWE-401

References

https://downwithup.github.io/CVEPosts.htmlExploitVendor Advisory
https://www.iobit.com/en/iobitsmartdefrag.phpProductVendor Advisory
https://downwithup.github.io/CVEPosts.htmlExploitVendor Advisory
https://www.iobit.com/en/iobitsmartdefrag.phpProductVendor Advisory

FAQ

What is CVE-2019-6493?

CVE-2019-6493 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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...

How severe is CVE-2019-6493?

CVE-2019-6493 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2019-6493?

Check the references section above for vendor advisories and patch information. Affected products include: Iobit Smart Defrag.