Thibault Godouet fcron 3.0.0 strdup2 command-line memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability has been found in Thibault Godouet fcron 3.0.0 and classified as problematic. Affected is the function strdup2. The manipulation of the argument command-line leads to memory corruption. This vulnerability is uniquely identified as CVE-2006-0539. Moreover, an exploit is present.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Thibault Godouet fcron 3.0.0. This issue affects the function strdup2. The manipulation of the argument command-line with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The convert-fcrontab program in fcron 3.0.0 might allow local users to gain privileges via a long command-line argument, which causes Linux glibc to report heap memory corruption, possibly because a strcpy in the strdup2 function can "overwrite some data."

The weakness was disclosed 02/03/2006 by Adam Zabrocki (Website). The advisory is shared at vupen.com. The identification of this vulnerability is CVE-2006-0539 since 02/04/2006. The exploitation is known to be easy. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known.

The exploit is available at exploit-db.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (24444), Exploit-DB (27159), SecurityFocus (BID 16467†) and Secunia (SA18719†). The entry VDB-28606 is pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.9
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/01/2006 🔍
02/03/2006 +2 days 🔍
02/03/2006 +0 days 🔍
02/03/2006 +0 days 🔍
02/04/2006 +1 days 🔍
03/12/2015 +3323 days 🔍
03/22/2025 +3663 days 🔍

Sourcesinfo

Advisory: vupen.com⛔
Researcher: Adam Zabrocki
Status: Not defined
Confirmation: 🔍

CVE: CVE-2006-0539 (🔍)
GCVE (CVE): GCVE-0-2006-0539
GCVE (VulDB): GCVE-100-28577
X-Force: 24444 - Fcron convert-fcrontab syslog() buffer overflow
SecurityFocus: 16467 - Fcron Convert-FCronTab Local Buffer Overflow Vulnerability
Secunia: 18719 - Trustix Fcron "convert-fcrontab" Two Vulnerabilities, Less Critical
Vupen: ADV-2006-0435

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

Entryinfo

Created: 03/12/2015 11:11
Updated: 03/22/2025 06:12
Changes: 03/12/2015 11:11 (55), 07/18/2018 09:44 (7), 03/22/2025 06:12 (25)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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