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CVE-2012-4409

MediumPublished

Stack-based buffer overflow in the check_file_head function in extra.c in mcrypt 2.6.8 and earlier allows user-assisted remote attackers to execute...

Published: Nov 21, 2012
Updated: Aug 6, 2024
Assigning CNA: redhat
Evidence observed: Nov 26, 2012

Primary CVSS

6.8/ 10Medium

nvd · CVSS 2.0

AV:N/AC:M/Au:N/C:P/I:P/A:P

EPSS probability estimate

15.1%

Moderate · next 30 days

Percentile: 96.6%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Stack-based buffer overflow in the check_file_head function in extra.c in mcrypt 2.6.8 and earlier allows user-assisted remote attackers to execute arbitrary code via an encrypted file with a crafted header containing long salt data that is not properly handled during decryption.

Sources

mcrypt 2.5.8 - Local Stack OverflowExploit
Tosh · linux · Nov 26, 2012
mcrypt 2.6.8 - Stack Buffer Overflow (PoC)Exploit
_ishikawa · linux · Nov 26, 2012

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