CVE-2011-1770 Information

Description

Integer underflow in the dccp_parse_options function (net/dccp/options.c) in the Linux kernel before 2.6.33.14 allows remote attackers to cause a denial of service via a Datagram Congestion Control Protocol (DCCP) packet with an invalid feature options length which triggers a buffer over-read.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061236.html http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061366.html http://marc.info/?l=linux-kernel&m=130468845209036&w=2 http://marc.info/?l=linux-kernel&m=130469305815140&w=2 http://secunia.com/advisories/44932 http://securityreason.com/securityalert/8286 http://www.kernel.org/pub/linux/kernel/v2.6/longterm/v2.6.33/ChangeLog-2.6.33.14 http://www.securityfocus.com/bid/47769 http://www.securitytracker.com/id?1025592 https://bugzilla.redhat.com/show_bug.cgi?id=703011

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