CVE-2020-23894 — MEDIUM (5.5)

Vulnerability Description

A User Mode Write AV in ntdll!RtlpCoalesceFreeBlocks+0x268 of WildBit Viewer v6.6 allows attackers to cause a denial of service (DoS) via a crafted tiff file.

CVSS Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Wildbit-Soft	Wildbit Viewer	6.6

Related Weaknesses (CWE)

CWE-787

References

https://github.com/Aurorainfinity/vulnerabilities/blob/master/WildBit_Viewer/tifThird Party Advisory
https://www.wildbit-soft.fi/software.htmlProduct
https://github.com/Aurorainfinity/vulnerabilities/blob/master/WildBit_Viewer/tifThird Party Advisory
https://www.wildbit-soft.fi/software.htmlProduct

FAQ

What is CVE-2020-23894?

CVE-2020-23894 is a vulnerability with a CVSS score of 5.5 (MEDIUM). A User Mode Write AV in ntdll!RtlpCoalesceFreeBlocks+0x268 of WildBit Viewer v6.6 allows attackers to cause a denial of service (DoS) via a crafted tiff file.

How severe is CVE-2020-23894?

CVE-2020-23894 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-2020-23894?

Check the references section above for vendor advisories and patch information. Affected products include: Wildbit-Soft Wildbit Viewer.