Intrusion Prevention

Unzip.Extra.Field.Uncompressed.Size.Buffer.Overflow

Description

This indicates an attack attempt to exploit a Buffer Overflow vulnerability in Info-ZIP UnZip.
The vulnerability is due to insufficient checking of user supplied data when the vulnerable software handles a maliciously crafted ZIP file. An attacker can exploit this by tricking an unsuspecting user into opening a malicious file and crash the affected application.

Affected Products

Info-ZIP UnZip 6.0 and prior

Impact

Denial of Service: Remote attackers can crash vulnerable systems.
System Compromise: Remote attackers can gain control of vulnerable systems.

Recommended Actions

Apply the most recent upgrade or patch from the vendor.
http://www.info-zip.org/phpBB3/viewtopic.php?f=7&t=450

CVE References

CVE-2014-9636