Denial of Service Vulnerability in VLC Media Player by VideoLAN
CVE-2021-25804

7.5HIGH

Key Information:

Vendor

Videolan
Status
Vlc Media Player
Vendor
CVE Published:
26 July 2021

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-25804?

A NULL-pointer dereference issue exists in the 'Open' function within 'avi.c' of VLC Media Player version 3.0.11. This vulnerability can lead to a denial of service, causing the application to crash unexpectedly when the affected function is invoked. Users of VLC Media Player are advised to update to the latest version to mitigate potential service disruptions.

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Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

VLC_CVE-2021-25804_Analysis
Created by DShankle

References

https://code.videolan.org/videolan/vlc-3.0/-/commit/a7f57...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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