PT-2021-10969 · Wildbit · Wildbit Viewer

Published 2021-11-10 · Updated 2021-11-13 · CVE-2020-23894

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: WildBit Viewer version 6.6

Description: The issue allows attackers to cause a denial of service (DoS) via a crafted tiff file. This is due to a User Mode Write AV in ntdll!RtlpCoalesceFreeBlocks+0x268.

Recommendations: For WildBit Viewer version 6.6, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2020-23894

Affected Products

Wildbit Viewer

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2020-23894 · Security Note
• https://osv.dev/vulnerability/CVE-2020-23894 · Vendor Advisory
• https://github.com/Aurorainfinity/vulnerabilities/blob/master/WildBit_Viewer/tiff_file_format.md · Note
• https://t.me/cibsecurity/32221 · Telegram Post
• https://wildbit-soft.fi/software.html · Note