CVE-2013-4563

Severity CVSS v4.0:

Pending analysis

Type:

CWE-189 Numeric Errors

Publication date:

20/11/2013

Last modified:

11/04/2025

Description

The udp6_ufo_fragment function in net/ipv6/udp_offload.c in the Linux kernel through 3.12, when UDP Fragmentation Offload (UFO) is enabled, does not properly perform a certain size comparison before inserting a fragment header, which allows remote attackers to cause a denial of service (panic) via a large IPv6 UDP packet, as demonstrated by use of the Token Bucket Filter (TBF) queueing discipline.

Impact

Vector 2.0

AV:N/AC:M/Au:N/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.10 HIGH
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete

Base Score 2.0

7.10

Severity 2.0

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	3.9.8 (including)	3.10.23 (including)
cpe:2.3:o:linux:linux_kernel::::::::	3.11 (including)	3.12.4 (excluding)
cpe:2.3:o:canonical:ubuntu_linux:12.04::::-:::
cpe:2.3:o:canonical:ubuntu_linux:13.10:::::::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2013-4563

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools