CVE-2013-4563

Severity Score

7.1

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

La función udp6_ufo_fragment en net/ipv6/udp_offload.c del kernel de Linux hasta la versión 3.12, cuando está activado UDP Fragmentation Offload (UFO), no realiza adecuadamente comparaciones de cierto tamaño antes de insertar una cabecera fragmentada, lo que permite a atacantes remotos provocar una denegación de servicio (panic) a través de un paquete IPv6 UDP grande, tal y como se demostró mediante el uso de Token Bucket Filter (TBF).

*Credits: N/A

CVSS Scores

NISTv2 7.1

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2013-06-12 CVE Reserved
2013-11-19 CVE Published
2024-08-06 CVE Updated
2024-08-06 EPSS Updated
2024-08-06 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-189: Numeric Errors

CAPEC

References (7)

URL	Tag	Source
https://bugzilla.redhat.com/show_bug.cgi?id=1030015	Issue Tracking

URL	Date	SRC
https://github.com/torvalds/linux/commit/0e033e04c2678dbbe74a46b23fffb7bb918c288e	2024-08-06

URL	Date	SRC
http://www.openwall.com/lists/oss-security/2013/11/13/9	2023-05-19

URL	Date	SRC
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0e033e04c2678dbbe74a46b23fffb7bb918c288e	2023-05-19
http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00003.html	2023-05-19
http://www.ubuntu.com/usn/USN-2113-1	2023-05-19
http://www.ubuntu.com/usn/USN-2117-1	2023-05-19

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.9.8 <= 3.10.23 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.9.8 <= 3.10.23"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.11 < 3.12.4 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.11 < 3.12.4"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				13.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "13.10"		-		Affected