FreeBSD 6.0 ptrace PT_LWPINFO denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in FreeBSD 6.0. The affected element is the function PT_LWPINFO of the component ptrace. Executing a manipulation can lead to denial of service. This vulnerability is tracked as CVE-2006-4516. Moreover, an exploit is present. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic was found in FreeBSD 6.0 (Operating System). This vulnerability affects the function PT_LWPINFO of the component ptrace. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. CVE summarizes:

Integer signedness error in FreeBSD 6.0-RELEASE allows local users to cause a denial of service (memory corruption and kernel panic) via a PT_LWPINFO ptrace command with a large negative data value that satisfies a signed maximum value check but is used in an unsigned copyout function call.

The bug was discovered 10/10/2006. The weakness was disclosed 10/11/2006 with iDefense Labs (Website). The advisory is available at labs.idefense.com. This vulnerability was named CVE-2006-4516 since 08/31/2006. Access to the local network is required for this attack. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known.

It is possible to download the exploit at exploit-db.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.

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at freebsd.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at X-Force (29476), Exploit-DB (2524), SecurityFocus (BID 20440†), OSVDB (29611†) and Secunia (SA22367†). Once again VulDB remains the best source for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.5
VulDB Temp Score: 5.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Denial of service
CWE: CWE-404
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: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: freebsd.org

Timelineinfo

08/31/2006 🔍
10/10/2006 +40 days 🔍
10/10/2006 +0 days 🔍
10/10/2006 +0 days 🔍
10/11/2006 +1 days 🔍
10/11/2006 +0 days 🔍
10/11/2006 +0 days 🔍
10/11/2006 +0 days 🔍
10/16/2006 +4 days 🔍
12/05/2024 +6625 days 🔍

Sourcesinfo

Product: freebsd.org

Advisory: labs.idefense.com⛔
Researcher: http://www.idefense.com
Organization: iDefense Labs
Status: Confirmed

CVE: CVE-2006-4516 (🔍)
GCVE (CVE): GCVE-0-2006-4516
GCVE (VulDB): GCVE-100-2602
X-Force: 29476 - FreeBSD PT_LWPINFO ptrace denial of service, Medium Risk
SecurityFocus: 20440 - FreeBSD PTrace PT_LWPINFO Local Denial of Service Vulnerability
Secunia: 22367 - FreeBSD "PT_LWPINFO" Ptrace Command Denial of Service, Not Critical
OSVDB: 29611 - FreeBSD PT_LWPINFO ptrace Local DoS
Vulnerability Center: 12909 - FreeBSD Denial of Service due to Signedness Error in PT_LWPINFO Ptrace Command, Medium

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

Entryinfo

Created: 10/11/2006 15:08
Updated: 12/05/2024 12:40
Changes: 10/11/2006 15:08 (83), 07/09/2019 10:58 (1), 12/05/2024 12:40 (25)
Complete: 🔍
Cache ID: 216:F7B:103

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