CVE-2020-23887
XnView MP vulnerability analysis and mitigation

Overview

XnView MP version 0.96.4 was discovered to contain a heap overflow vulnerability which allows attackers to cause a denial of service (DoS) via a crafted ico file (NVD).

Technical details

The vulnerability exists in the SmartStretchDIBits function within USER32.dll when processing ICO files. When XnView opens a carefully constructed ico file, it triggers an access violation at USER32!SmartStretchDIBits+0x33, leading to a read access violation and potential heap overflow (Github Vuln).

Impact

The vulnerability can lead to denial of service conditions when processing specially crafted ICO files, causing the application to crash. This affects the stability and availability of the XnView MP application (NVD).

Mitigation and workarounds

Users should upgrade to a version newer than 0.96.4. XnView MP has released multiple versions since then, with the latest being 1.8.6, which likely contains fixes for this vulnerability (XnView).

Additional resources


SourceThis report was generated using AI

Related XnView MP vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2019-9965HIGH7.8
  • XnView MPXnView MP
  • cpe:2.3:a:xnview:xnview_mp
NoYesMar 24, 2019
CVE-2019-9964HIGH7.8
  • XnView MPXnView MP
  • cpe:2.3:a:xnview:xnview_mp
NoYesMar 24, 2019
CVE-2019-9963HIGH7.8
  • XnView MPXnView MP
  • cpe:2.3:a:xnview:xnview_mp
NoYesMar 24, 2019
CVE-2020-23887MEDIUM5.5
  • XnView MPXnView MP
  • cpe:2.3:a:xnview:xnview_mp
NoYesNov 10, 2021
CVE-2020-23886MEDIUM5.5
  • XnView MPXnView MP
  • cpe:2.3:a:xnview:xnview_mp
NoYesNov 10, 2021

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