Cap�??n Proto 'capnp/layout.c++' Remote Integer Underflow Vulnerability

Bugtraq ID:	73124
Class:	Design Error
CVE:	CVE-2015-2311
Remote:	Yes
Local:	No
Published:	Mar 16 2015 12:00AM
Updated:	Mar 16 2015 12:00AM
Credit:	Kenton Varda
Vulnerable:	Sandstorm.io Cap'n Proto 0.4.1
Not Vulnerable:	Sandstorm.io Cap'n Proto 0.5.1.1 Sandstorm.io Cap'n Proto 0.4.1.1

Cap�??n Proto 'capnp/layout.c++' Remote Integer Underflow Vulnerability

Capâ??n Proto is prone to a remote integer-underflow vulnerability because it fails to sufficiently validate an integer value.

An attacker can exploit this issue to execute arbitrary code with the privileges of the user running the affected application. Failed attempts may trigger a denial-of-service condition.

Capâ??n Proto 0.4.1 is vulnerable; other versions may also be affected.

Cap�??n Proto 'capnp/layout.c++' Remote Integer Underflow Vulnerability

Currently, we are not aware of any working exploits. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

Cap�??n Proto 'capnp/layout.c++' Remote Integer Underflow Vulnerability

Solution:
Updates are available. Please see the references or vendor advisory for more information.