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Vigil@nce: Linux kernel, remote access via dccp_setsockopt_change()

August 2008 by Vigil@nce

SYNTHESIS

A remote attacker can maliciously use "dccp_setsockopt_change"
function to generate a "Kernel Panic" and thus generate a denial
of service.

Gravity: 2/4

Consequences: denial of service of computer

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: 18/08/2008

Identifier: VIGILANCE-VUL-8036

IMPACTED PRODUCTS

 Linux kernel [confidential versions]

DESCRIPTION

DCCP protocol provide a way to gain access to congestion control
mechanisms.

The Linux Kernel implements this protocol in net/dccp/ directory.

The "dccp_setsockopt_change" function implemented in proto.c file,
can be exploited to generates a "Kernel Panic".

A remote attacker can therefore maliciously use
"dccp_setsockopt_change" function to generate a "Kernel Panic" and
thus generate a denial of service.

CHARACTERISTICS

Identifiers: BID-30704, CVE-2008-3276, VIGILANCE-VUL-8036

https://vigilance.aql.fr/tree/1/8036


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