Sid 1-39623

Message

FILE-IMAGE Multiple products TIFF tile size buffer overflow attempt

Summary

Vulnerabilities in multiple products' TIFF image parsers allow for potential remote code execution via a crafted .tiff or .tif file.

Impact

Potential user access to a victim's machine.

CVE-2016-4631:

CVSS base score 8.8

CVSS impact score 5.9

CVSS exploitability score 2.8

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Detailed information

Rule checks for an attempt to exploit a buffer overflow vulnerability via a crafted .tiff or .tif file. CVE-2016-4631: ImageIO in Apple iOS before 9.3.3, OS X before 10.11.6, tvOS before 9.2.2, and watchOS before 2.2.2 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted TIFF file.

Affected systems

• apple apple_tv 9.2.1
• apple iphone_os 9.3.2
• apple macosx 10.11.5
• apple watchos 2.2.1

Ease of attack

Hard

False positives

None known

False negatives

None known

Corrective action

Contributors

• Talos research team.

Additional References

• www.talosintelligence.com/reports/TALOS-2016-0171
• www.talosintelligence.com/reports/TALOS-2016-0205