Linux Kernel 2.6.8.1 input validation

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

A vulnerability has been found in Linux Kernel 2.6.8.1 (Operating System) and classified as critical. This vulnerability affects an unknown functionality. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. CVE summarizes:

Netfilter in Linux kernel 2.6.8.1 allows remote attackers to cause a denial of service (kernel crash) via crafted IP packet fragments.

The bug was discovered 02/15/2005. The weakness was published 05/02/2005 by Michael Kerrisk (Website). The advisory is shared for download at novell.com. This vulnerability was named CVE-2005-0209 since 02/01/2005. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 213 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 20721 (Ubuntu 4.10 : linux-source-2.6.8.1 vulnerabilities (USN-95-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115057 (Multiple Linux Kernel IOCTL Handlers Local Memory Corruption Vulnerabilities).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (19365) and Tenable (20721). Similar entries are available at 1233, 1234, 1231 and 1232.

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

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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CVSSv2info

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Exploitinginfo

Class: Input validation
CWE: CWE-20
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Nessus ID: 20721
Nessus Name: Ubuntu 4.10 : linux-source-2.6.8.1 vulnerabilities (USN-95-1)
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OpenVAS ID: 65101
OpenVAS Name: SLES9: Security update for Linux kernel
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
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Timelineinfo

08/14/2004 🔍
02/01/2005 +171 days 🔍
02/15/2005 +14 days 🔍
02/15/2005 +0 days 🔍
02/15/2005 +0 days 🔍
02/16/2005 +1 days 🔍
03/15/2005 +27 days 🔍
05/02/2005 +48 days 🔍
05/02/2005 +0 days 🔍
01/15/2006 +258 days 🔍
02/28/2007 +409 days 🔍
03/10/2015 +2932 days 🔍
07/15/2019 +1588 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: novell.com
Researcher: Michael Kerrisk
Status: Not defined

CVE: CVE-2005-0209 (🔍)
OVAL: 🔍

X-Force: 19365
Vulnerability Center: 14451 - Linux Kernel 2.6.8.1 Netfilter Remote Denial of Service via Crafted IP Packet Fragments, High
SecurityFocus: 12598 - Linux Kernel Multiple Vulnerabilities
Secunia: 14295 - Linux Kernel Multiple Vulnerabilities, Moderately Critical
OSVDB: 14965 - Linux kernel netfilter/iptables module security bypass

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Entryinfo

Created: 03/10/2015 23:05
Updated: 07/15/2019 19:05
Changes: 03/10/2015 23:05 (84), 07/15/2019 19:05 (5)
Complete: 🔍

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