Apple Terminal xterm Resize Escape Sequence Memory Corruption VulnerabilityTPTI-09-04: June 2nd, 2009
TippingPoint™ IPS Customer ProtectionTippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 8152. For further product information on the TippingPoint IPS:
Vulnerability DetailsThis vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apple Terminal. User interaction is required to exploit this vulnerability in that the target must visit a malicious page.
The specific flaw exists in the handling of 'CSI[4' xterm window resizing escape code. When a very low negative value for (x, y) size is set, an integer overflow occurs resulting in a memory corruption. This can be further leveraged to execute arbitrary code under the context of the logged in user.
Vendor ResponseApple has issued an update to correct this vulnerability. More details can be found at:
2009-05-06 - Vulnerability reported to vendor
2009-06-02 - Coordinated public release of advisory