Linux Kernel 2.6 Test9 Cvs pppol2tp_recvmsg input validation

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.
6.7$0-$5k0.00

A vulnerability classified as critical was found in Linux Kernel 2.6 Test9 Cvs (Operating System). This vulnerability affects the function pppol2tp_recvmsg. 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:

The pppol2tp_recvmsg function in drivers/net/pppol2tp.c in the Linux kernel 2.6 before 2.6.26-rc6 allows remote attackers to cause a denial of service (kernel heap memory corruption and system crash) and possibly have unspecified other impact via a crafted PPPOL2TP packet that results in a large value for a certain length variable.

The bug was discovered 06/10/2008. The weakness was shared 06/18/2008 (Website). The advisory is available at securityfocus.com. This vulnerability was named CVE-2008-2750 since 06/18/2008. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 8 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 40008 (openSUSE Security Update : kernel (kernel-111)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165023 (SUSE Security Update for Kernel (SUSE-SA:2008:037)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (43111) and Tenable (40008). The entry 43336 is related to this item.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

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

NVD Base Score: 🔍

Exploitinginfo

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

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 40008
Nessus Name: openSUSE Security Update : kernel (kernel-111)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 63290
OpenVAS Name: Fedora Core 9 FEDORA-2009-0816 (kernel)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

06/10/2008 🔍
06/10/2008 +0 days 🔍
06/16/2008 +6 days 🔍
06/16/2008 +0 days 🔍
06/18/2008 +2 days 🔍
06/18/2008 +0 days 🔍
06/18/2008 +0 days 🔍
07/14/2008 +26 days 🔍
07/21/2008 +7 days 🔍
07/21/2009 +365 days 🔍
03/16/2015 +2064 days 🔍
08/14/2019 +1612 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: securityfocus.com⛔
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2008-2750 (🔍)
OVAL: 🔍

X-Force: 43111
SecurityTracker: 1020297
Vulnerability Center: 18816 - Linux kernel 2.6 before 2.6.26-rc6 ppol2tp_recvmsg Function Remote DoS via Crafted PPPOL2TP Packet, Low
SecurityFocus: 29747 - Linux Kernel 'pppol2tp_recvmsg()' Remote Denial of Service Vulnerability
Secunia: 30719
OSVDB: 46164 - CVE-2008-2750 - Linux - Kernel - Denial-Of-Service Issue
Vupen: ADV-2008-1854

See also: 🔍

Entryinfo

Created: 03/16/2015 17:00
Updated: 08/14/2019 12:21
Changes: 03/16/2015 17:00 (76), 08/14/2019 12:21 (13)
Complete: 🔍

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Are you interested in using VulDB?

Download the whitepaper to learn more about our service!