SMTP: ClamAV UPX File Handling Heap Overflow

This signature detects attempts to exploit a known vulnerability agains Clam Anti-Virus. A successful attack can lead to a buffer overflow and arbitrary remote code execution within the context of the server.

Extended Description

ClamAV is prone to a heap buffer-overflow vulnerability because it fails to properly bounds-check user-supplied data before copying it to an insufficiently sized memory buffer. This issue occurs when the application attempts to handle compressed UPX files. Exploiting this issue could allow attacker-supplied machine code to execute in the context of the affected application. The issue would occur when the malformed file is scanned manually or automatically in deployments such as email gateways. ClamAV versions 0.88.2 and 0.88.3 are vulnerable to this issue; prior versions may also be affected.

Affected Products

Suse linux_professional

References

CVE: CVE-2006-4018

Short Name

SMTP:OVERFLOW:CLAMAV-UPX-OF

Severity

Major

Recommended

False

Recommended Action

None

SMTP: ClamAV UPX File Handling Heap Overflow

Extended Description

Affected Products

References

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