Linux Kernel 2.6.16.9 of input validation

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel 2.6.16.9. It has been classified as problematic. This affects the function of. This manipulation causes input validation. This vulnerability is handled as CVE-2008-2812. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel 2.6.16.9 (Operating System). Affected by this vulnerability is the function of. 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 confidentiality, integrity, and availability. The summary by CVE is:

The Linux kernel before 2.6.25.10 does not properly perform tty operations, which allows local users to cause a denial of service (system crash) or possibly gain privileges via vectors involving NULL pointer dereference of function pointers in (1) hamradio/6pack.c, (2) hamradio/mkiss.c, (3) irda/irtty-sir.c, (4) ppp_async.c, (5) ppp_synctty.c, (6) slip.c, (7) wan/x25_asy.c, and (8) wireless/strip.c in drivers/net/.

The issue has been introduced in 03/20/2006. The weakness was released 07/08/2008 (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is known as CVE-2008-2812 since 06/20/2008. The exploitation appears to be easy. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. Technical details of the vulnerability 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 841 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 43701 (CentOS 5 : kernel (CESA-2008:0612)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165693 (SUSE Enterprise Linux Security Update Linux Kernel (SUSE-SA:2008:035)).

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 (43687), Tenable (43701), SecurityFocus (BID 30076†), OSVDB (46920†) and Secunia (SA30982†). Entries connected to this vulnerability are available at VDB-43118 and VDB-43007. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.1
VulDB Meta Temp Score: 7.7

VulDB Base Score: 8.4
VulDB Temp Score: 7.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 43701
Nessus Name: CentOS 5 : kernel (CESA-2008:0612)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 61436
OpenVAS Name: Debian Security Advisory DSA 1630-1 (linux-2.6)
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

03/20/2006 🔍
06/20/2008 +823 days 🔍
07/03/2008 +13 days 🔍
07/03/2008 +0 days 🔍
07/08/2008 +5 days 🔍
07/08/2008 +0 days 🔍
07/28/2008 +20 days 🔍
08/06/2008 +9 days 🔍
01/06/2010 +518 days 🔍
03/17/2015 +1896 days 🔍
08/01/2021 +2329 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: securityfocus.com⛔
Status: Not defined
Confirmation: 🔍

CVE: CVE-2008-2812 (🔍)
GCVE (CVE): GCVE-0-2008-2812
GCVE (VulDB): GCVE-100-43111

OVAL: 🔍
IAVM: 🔍

X-Force: 43687
SecurityFocus: 30076 - Linux Kernel TTY Operations NULL Pointer Dereference Denial of Service Vulnerabilities
Secunia: 30982
OSVDB: 46920 - Linux Kernel drivers/net/hamradio/mkiss.c TTY Operations Function Pointers NULL Dereference
Vulnerability Center: 18941 - Linux Kernel TTY Operations Allows Local Users to Cause DoS or Code Execution, Medium
Vupen: ADV-2008-2063

See also: 🔍

Entryinfo

Created: 03/17/2015 12:19
Updated: 08/01/2021 11:52
Changes: 03/17/2015 12:19 (79), 08/14/2019 22:11 (8), 08/01/2021 11:52 (13)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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