Integer Overflow Vulnerability in SumatraPDF and MuPDF by Artifex Software
CVE-2012-5340

7.8HIGH

Key Information:

Vendor
CVE Published:
23 January 2020

Badges

๐Ÿ‘พ Exploit Exists๐ŸŸก Public PoC

What is CVE-2012-5340?

The vulnerability present in SumatraPDF and MuPDF allows remote attackers to exploit an integer overflow flaw in the lex_number() function. This can be triggered through specially crafted PDF files, leading to potential remote code execution. Users should be aware of the risks associated with processing untrusted PDF documents to mitigate exposure to this vulnerability.

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.

References

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • ๐ŸŸก

    Public PoC available

  • ๐Ÿ‘พ

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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