CVE-2017-2634 Information

Description

It was found that the Linux kernel’s Datagram Congestion Control Protocol (DCCP) implementation before 2.6.22.17 used the IPv4-only inet_sk_rebuild_header() function for both IPv4 and IPv6 DCCP connections which could result in memory corruptions. A remote attacker could use this flaw to crash the system.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

http://rhn.redhat.com/errata/RHSA-2017-0323.html http://rhn.redhat.com/errata/RHSA-2017-0346.html http://rhn.redhat.com/errata/RHSA-2017-0347.html http://www.securityfocus.com/bid/96529 http://www.securitytracker.com/id/1037909 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2634 https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=f53dc67c5e7babafe239b93a11678b0e05bead51

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5