Vigil@nce: Solaris, denial of service of socket
November 2008 by Vigil@nce
A local attacker can use the socket() function in order to panic the system.
Consequences: denial of service of computer
Provenance: user shell
Means of attack: no proof of concept, no attack
Ability of attacker: expert (4/4)
Confidence: confirmed by the editor (5/5)
Diffusion of the vulnerable configuration: high (3/3)
Creation date: 14/11/2008
The SDP (Sockets Direct Protocol) protocol was defined for InfiniBand hardware (high speed computer bus).
The socket() function creates a communication point which can be of SDP type.
However, if the computer has to InfiniBand bus, closing a SDP socket calls socksdpv_close() of usr/src/uts/common/fs/sockfs/socksdpvnops.c which creates a recursive mutex call and panics the system.
A local attacker can thus use the socket() function in order to panic systems with no InfiniBand hardware.
Identifiers: 242806, 6708602, VIGILANCE-VUL-8248