85194 : mcrypt src/extra.c check_file_head() Function Encrypted File Header Handling Overflow
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Timeline

Disclosure Date
2012-09-07

Description

mcrypt is prone to an overflow condition. The check_file_head() function of src/extra.c fails to properly sanitize user-supplied input resulting in a stack-based buffer overflow. With a specially crafted encrypted file header, a context-dependent attacker can potentially execute arbitrary code.

Classification

Location: Context Dependent
Attack Type: Input Manipulation
Impact: Loss of Integrity
Solution: Solution Unknown
Exploit: Exploit Public
Disclosure: Third-party Verified, Uncoordinated Disclosure

Solution

OSVDB is not aware of a solution for this vulnerability.

Products

John Smith
mcrypt
2.6.8

References

Credit

CVSSv2 Score

CVSSv2 Base Score = 6.8
Source: nvd.nist.gov | Generated: 2012-11-22 | Disagree?

Access_vector_2 Access_complexity_1 Authentication_2 Confidentiality_impact_1 Integrity_impact_1 Availability_impact_1

Comments

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