Linux Kernel 3.10-rc5 UDP Packet net/ipv6/udp_offload.c udp6_ufo_fragment numeric error

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability classified as critical was found in Linux Kernel 3.10-rc5 (Operating System). This vulnerability affects the function udp6_ufo_fragment of the file net/ipv6/udp_offload.c of the component UDP Packet Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-189. As an impact it is known to affect availability.

The weakness was shared 11/06/2013 by Saran Neti with TELUS Security Labs as CVE-2013-4563 -- Linux kernel: net: large udp packet over IPv6 over UFO-enabled device with TBF qdisc panic as not defined mailinglist post (oss-sec). The advisory is shared for download at This vulnerability was named CVE-2013-4563 since 06/12/2013. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 72578 (Ubuntu 13.10 : linux vulnerabilities (USN-2117-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 195765 (Ubuntu Security Notification for Linux-lts-saucy Vulnerabilities (USN-2113-1)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at A possible mitigation has been published immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 16332.

The vulnerability is also documented in the databases at SecurityFocus (BID 63702), Secunia (SA55658), Vulnerability Center (SBV-42316) and Tenable (72578). The entries 11441, 11510 and 65499 are related to this item.





CPE 2.3infoedit

CPE 2.2infoedit


VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
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Class: Denial of service
CWE: CWE-189
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍


Nessus ID: 72578
Nessus Name: Ubuntu 13.10 : linux vulnerabilities (USN-2117-1)
Nessus File: 🔍
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OpenVAS ID: 867089
OpenVAS Name: Fedora Update for kernel FEDORA-2013-21807
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Threat Intelligenceinfoedit

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Recommended: Patch
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06/12/2013 🔍
11/06/2013 +147 days 🔍
11/06/2013 +0 days 🔍
11/13/2013 +7 days 🔍
11/17/2013 +4 days 🔍
11/20/2013 +3 days 🔍
11/21/2013 +1 days 🔍
02/19/2014 +90 days 🔍
12/26/2016 +1041 days 🔍
05/15/2017 +140 days 🔍



Advisory: CVE-2013-4563 -- Linux kernel: net: large udp packet over IPv6 over UFO-enabled device with TBF qdisc panic
Researcher: Saran Neti
Organization: TELUS Security Labs
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-4563 (🔍)

SecurityFocus: 63702
Secunia: 55658 - Linux Kernel "udp6_ufo_fragment()" Denial of Service Vulnerability, Moderately Critical
Vulnerability Center: 42316 - Linux Kernel 3.10-rc5 Through 3.12 Remote Denial of Service Vulnerability via UDP Packets Larger than the MTU, Medium
OSVDB: 99877

See also: 🔍


Created: 11/21/2013 02:30 PM
Updated: 05/15/2017 11:35 AM
Changes: (2) advisory_confirm_url source_oval_id
Complete: 🔍
Committer: olku


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