Linux Kernel up to 2.6.x ISO9660 isofs_get_blocks code

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.
4.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel up to 2.6.x. Affected is the function isofs_get_blocks of the component ISO9660. Performing a manipulation results in Remote Code Execution. This vulnerability is identified as CVE-2006-5757. Additionally, an exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 2.6.x (Operating System). It has been classified as problematic. This affects the function isofs_get_blocks of the component ISO9660. The manipulation with an unknown input leads to a code vulnerability. CWE is classifying the issue as CWE-17. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Race condition in the __find_get_block_slow function in the ISO9660 filesystem in Linux 2.6.18 and possibly other versions allows local users to cause a denial of service (infinite loop) by mounting a crafted ISO9660 filesystem containing malformed data structures.

The bug was discovered 11/05/2006. The weakness was released 11/06/2006 by LHM (Website). The advisory is shared at projects.info-pull.com. This vulnerability is uniquely identified as CVE-2006-5757 since 11/06/2006. The attack can only be done within the local network. No form of authentication is needed for exploitation. Technical details and a public exploit are known.

The exploit is shared for download at projects.info-pull.com. 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 24054 (Fedora Core 6 : kernel-2.6.18-1.2849.fc6 (2006-1223)), 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 115509 (Red Hat Kernel Security Update (RHSA-2007:0014)).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at kernel.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 6 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (30029), Exploit-DB (28912), Tenable (24054), SecurityFocus (BID 20920†) and OSVDB (30067†). Entries connected to this vulnerability are available at VDB-2551, VDB-2589, VDB-2647 and VDB-2714. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 4.5

VulDB Base Score: 5.0
VulDB Temp Score: 4.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Code
CWE: CWE-17
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 24054
Nessus Name: Fedora Core 6 : kernel-2.6.18-1.2849.fc6 (2006-1223)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 58357
OpenVAS Name: Debian Security Advisory DSA 1304-1 (kernel-source-2.6.8)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: kernel.org

Timelineinfo

11/05/2006 🔍
11/05/2006 +0 days 🔍
11/05/2006 +0 days 🔍
11/06/2006 +1 days 🔍
11/06/2006 +0 days 🔍
11/06/2006 +0 days 🔍
11/06/2006 +0 days 🔍
11/06/2006 +0 days 🔍
11/07/2006 +0 days 🔍
11/12/2006 +5 days 🔍
01/17/2007 +66 days 🔍
01/23/2007 +6 days 🔍
04/26/2026 +7033 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: projects.info-pull.com
Researcher: LHM
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-5757 (🔍)
GCVE (CVE): GCVE-0-2006-5757
GCVE (VulDB): GCVE-100-2661

OVAL: 🔍

X-Force: 30029 - Linux kernel ISO9660 denial of service, Medium Risk
SecurityFocus: 20920 - Linux Kernel ISO9660 Denial of Service Vulnerability
Secunia: 22746 - Fedora Core ISO9660 Local Denial of Service, Not Critical
OSVDB: 30067 - Linux Kernel ISO9660 __find_get_block_slow Function Race Condition Local DoS
Vulnerability Center: 14129 - Linux Kernel Denial of Service via ISO9660 Filesystem, Low
Vupen: ADV-2006-4359

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 11/07/2006 10:42
Updated: 04/26/2026 12:23
Changes: 11/07/2006 10:42 (104), 07/14/2019 07:40 (3), 01/21/2025 10:30 (23), 04/26/2026 12:23 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you know our Splunk app?

Download it now for free!