smail 3.2.0.120 Signal modes.c memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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9.0$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in smail 3.2.0.120. Affected is an unknown function of the file modes.c of the component Signal Handler. Performing a manipulation results in memory corruption. This vulnerability is known as CVE-2005-0893. Furthermore, an exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in smail 3.2.0.120. This affects some unknown functionality of the file modes.c of the component Signal Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

modes.c in smail 3.2.0.120 implements signal handlers with certain unsafe library calls, which may allow attackers to execute arbitrary code via signal handler race conditions, possibly using xmalloc.

The bug was discovered 03/25/2004. The weakness was published 05/02/2005 by infamous41md as not defined posting (Bugtraq). The advisory is shared at marc.theaimsgroup.com. This vulnerability is uniquely identified as CVE-2005-0893 since 03/29/2005. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known.

A public exploit has been developed in ANSI C. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 403 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 18226 (Debian DSA-722-1 : smail - buffer overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published 1 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (19840), Tenable (18226), SecurityFocus (BID 12899†), OSVDB (15066†) and Vulnerability Center (SBV-13026†). Similar entry is available at VDB-24120. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.0

VulDB Base Score: 10.0
VulDB Temp Score: 9.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 18226
Nessus Name: Debian DSA-722-1 : smail - buffer overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

03/25/2004 🔍
03/25/2005 +365 days 🔍
03/25/2005 +0 days 🔍
03/29/2005 +4 days 🔍
05/02/2005 +34 days 🔍
05/02/2005 +0 days 🔍
05/09/2005 +7 days 🔍
05/11/2005 +2 days 🔍
11/01/2006 +539 days 🔍
03/10/2015 +3051 days 🔍
07/10/2019 +1583 days 🔍

Sourcesinfo

Advisory: marc.theaimsgroup.com
Researcher: infamous41md
Status: Not defined

CVE: CVE-2005-0893 (🔍)
GCVE (CVE): GCVE-0-2005-0893
GCVE (VulDB): GCVE-100-24705
X-Force: 19840
SecurityFocus: 12899 - Smail-3 Multiple Remote and Local Vulnerabilities
OSVDB: 15066 - CVE-2005-0893 - Smail - Code Execution Issue
Vulnerability Center: 13026 - Smail modes.c Code Execution Vulnerability, Critical

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

Entryinfo

Created: 03/10/2015 23:05
Updated: 07/10/2019 11:52
Changes: 03/10/2015 23:05 (66), 07/10/2019 11:52 (12)
Complete: 🔍
Cache ID: 216::103

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

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