News
Vigil@nce: Linux Kernel, denial of service via sctp_setsockopt_auth_key()
August 2008 by Vigil@nce
A local attacker can use maliciously the "sctp_setsockopt_auth_key()"
function in order to create a denial of service on victim’s
computer.
– Gravity: 2/4
– Consequences: denial of service of client
– Provenance: internet client
– 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: 27/08/2008
– Identifier: VIGILANCE-VUL-8058
IMPACTED PRODUCTS
– Linux kernel [confidential versions]
DESCRIPTION
SCTP (Stream Control Transmission Protocol) is a control protocol
which can be compared in several points to TCP and UDP. SCTP uses
sockets.
Linux kernel implement SCTP, and use functions such as
"sctp_setsockopt_auth_key()". This last is used to specify
authentication options of the socket. SCTP_AUTH_KEY option is not
protected against overflow.
An attacker can therefore attribute a malicious value to the
SCTP_AUTH_KEY option, in order to generate a denial of service on
victim’s computer.
CHARACTERISTICS
– Identifiers: CVE-2008-3526, VIGILANCE-VUL-8058
– Url: https://vigilance.aql.fr/tree/1/8058
