Actu
Vigil@nce - Linux kernel: NULL pointer dereference via net/rds/send.c
November 2015 by Vigil@nce
This bulletin was written by Vigil@nce : http://vigilance.fr/offer
SYNTHESIS OF THE VULNERABILITY
A local attacker can force a NULL pointer to be dereferenced in
net/rds/connection.c of the Linux kernel, in order to trigger a
denial of service.
Impacted products: Debian, Linux.
Severity: 1/4.
Creation date: 27/10/2015.
DESCRIPTION OF THE VULNERABILITY
The Linux kernel implements RDS (Reliable Datagram Sockets).
However, if the socket is not bound before sending a message, the
rds_sendmsg() function of the net/rds/send.c file does not use a
lock, which triggers the vulnerability VIGILANCE-VUL-17886.
A local attacker can therefore force a NULL pointer to be
dereferenced in net/rds/connection.c of the Linux kernel, via an
error in net/rds/send.c, in order to trigger a denial of service.
ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN
http://vigilance.fr/vulnerability/Linux-kernel-NULL-pointer-dereference-via-net-rds-send-c-18191
