Linux Kernel up to 2.4.21 NFS XDR denial of service

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.

A vulnerability was found in Linux Kernel up to 2.4.21 (Operating System) and classified as critical. This issue affects an unknown code of the component NFS XDR Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. Impacted is availability.

The bug was discovered 07/29/2003. The weakness was released 07/29/2003 by Jared Stanbrough as not defined posting (Bugtraq). The advisory is shared at The identification of this vulnerability is CVE-2003-0619 since 07/31/2003. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

After immediately, there has been an exploit disclosed. It is declared as proof-of-concept. The exploit is available at The vulnerability scanner Nessus provides a plugin with the ID 11813 (Linux 2.4 NFSv3 knfsd Malformed GETATTR Request Remote DoS), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Denial of Service and running in the context remote.

Upgrading to version 2.4.21 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at SecurityFocus (BID 8298), X-Force (12764), Secunia (SA9403), Vulnerability Center (SBV-1586) and Tenable (11813). Entry connected to this vulnerability is available at 15502.





CPE 2.3infoedit

CPE 2.2infoedit


VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.9
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍


Class: Denial of service
CWE: CWE-404
ATT&CK: T1499

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Nessus ID: 11813
Nessus Name: Linux 2.4 NFSv3 knfsd Malformed GETATTR Request Remote DoS
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53647
OpenVAS Name: Debian Security Advisory DSA 358-1 (linux-kernel-i386, linux-kernel-alpha)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
Geopolitics: 🔍
Economy: 🔍
Predictions: 🔍
Remediation: 🔍


Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Upgrade: Kernel 2.4.21
ISS Proventia IPS: 🔍


07/29/2003 🔍
07/29/2003 +0 days 🔍
07/29/2003 +0 days 🔍
07/29/2003 +0 days 🔍
07/29/2003 +0 days 🔍
07/31/2003 +2 days 🔍
08/01/2003 +1 days 🔍
08/01/2003 +0 days 🔍
08/05/2003 +3 days 🔍
08/06/2003 +1 days 🔍
08/27/2003 +21 days 🔍
08/11/2017 +5098 days 🔍
06/26/2019 +684 days 🔍



Researcher: Jared Stanbrough
Status: Not defined

CVE: CVE-2003-0619 (🔍)

SecurityFocus: 8298 - Linux Kernel 2.4 XDR Packet Handler For NFSv3 Remote Denial Of Service Vulnerability
Secunia: 9403 - Linux Kernel NFS XDR Denial of Service, Less Critical
X-Force: 12764 - Linux kernel decode_fh nfs3xdr packet denial of service, Medium Risk
Vulnerability Center: 1586 - DoS in Linux Kernel nfs3xdr.c decode_fh Function via Negative Size in XDR Packet, Medium
OSVDB: 2353 - Linux Kernel NFS XDR DoS

scip Labs:
See also: 🔍


Created: 08/05/2003 12:30 PM
Updated: 06/26/2019 11:07 AM
Changes: (3) vulnerability_discoverydate source_securityfocus_date source_securityfocus_class
Complete: 🔍
Committer: olku


No comments yet. Please log in to comment.

Interested in the pricing of exploits?

See the underground prices here!