Linux Kernel up to 2.6.25 IPsec ESP race condition

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.
5.7$0-$5k0.00

A vulnerability, which was classified as problematic, has been found in Linux Kernel up to 2.6.25 (Operating System). Affected by this issue is an unknown part of the component IPsec ESP Handler. The manipulation with an unknown input leads to a race condition vulnerability. Using CWE to declare the problem leads to CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. Impacted is availability. CVE summarizes:

Race condition in the directory notification subsystem (dnotify) in Linux kernel 2.6.x before 2.6.24.6, and 2.6.25 before 2.6.25.1, allows local users to cause a denial of service (OOPS) and possibly gain privileges via unspecified vectors.

The bug was discovered 05/01/2008. The weakness was disclosed 05/02/2008 by Dirk Nehring (Website). The advisory is shared for download at marc.info. This vulnerability is handled as CVE-2008-1375 since 03/18/2008. The attack needs to be done within the local network. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 32335 (Fedora 8 : kernel-2.6.24.7-92.fc8 (2008-3873)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165690 (SUSE Enterprise Linux Security Update Linux Kernel (SUSE-SA:2008:032)).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at marc.info. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (42132) and Tenable (32335). The entries 3470, 3471, 3494 and 3706 are pretty similar.

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: 6.5
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.5
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Partially

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 32335
Nessus Name: Fedora 8 : kernel-2.6.24.7-92.fc8 (2008-3873)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 60931
OpenVAS Name: Debian Security Advisory DSA 1565-1 (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: 🔍

Patch: marc.info

Timelineinfo

03/18/2008 🔍
05/01/2008 +44 days 🔍
05/02/2008 +1 days 🔍
05/02/2008 +0 days 🔍
05/02/2008 +0 days 🔍
05/02/2008 +0 days 🔍
05/02/2008 +0 days 🔍
05/07/2008 +5 days 🔍
05/12/2008 +4 days 🔍
05/16/2008 +4 days 🔍
05/20/2008 +4 days 🔍
05/20/2008 +0 days 🔍
08/10/2019 +4099 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: marc.info
Researcher: Dirk Nehring
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2008-1375 (🔍)
OVAL: 🔍

X-Force: 42132 - Linux kernel Tehuti network buffer overflow, High Risk
SecurityTracker: 1019960
Vulnerability Center: 18356 - Linux Kernel Dnotify Race Condition Allows Local Users to Gain Root Privileges or Cause a DoS, Medium
SecurityFocus: 29014 - Linux Kernel Tehuti Network Driver 'BDX_OP_WRITE' Memory Corruption Vulnerability
Secunia: 30044 - Linux Kernel Multiple Vulnerabilities, Less Critical
OSVDB: 44927 - Linux Kernel Tehuti Driver (tehuti.c) bdx_ioctl_priv Function Unspecified Local Issue
Vupen: ADV-2008-1406

See also: 🔍

Entryinfo

Created: 05/20/2008 09:43
Updated: 08/10/2019 09:28
Changes: 05/20/2008 09:43 (101), 08/10/2019 09:28 (3)
Complete: 🔍

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Interested in the pricing of exploits?

See the underground prices here!