FreeBSD 8.4/9.1/9.2/10.0 Threaded Process execve/fexecve input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

A vulnerability classified as problematic was found in FreeBSD 8.4/9.1/9.2/10.0 (Operating System). Affected by this vulnerability is the function execve/fexecve of the component Threaded Process Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability.

The weakness was presented 06/03/2014 by Ivo De Decker with Debian as FreeBSD-EN-14:06.exec as confirmed advisory (Website). It is possible to read the advisory at freebsd.org. This vulnerability is known as CVE-2014-3880 since 05/27/2014. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The advisory points out:

When the virtual memory address space is recreated for the calling process, the old virtual memory address space, as well as its associated mappings, may be destroyed if the old address space is not suitable for the new image execution. The destruction happens before other threads in the current process are terminated. If the address space is destroyed, such threads still reference old address space and corresponding mapping structures, and an attempt to switch to them to gracefully terminate the remaining threads cause a triple fault and machine reset.

The vulnerability scanner Nessus provides a plugin with the ID 74374 (Debian DSA-2952-1 : kfreebsd-9 - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The advisory illustrates:

The system will reboot without any log or panic message when this happens due to a triple-fault triggered by dereferencing an invalid page table pointer.

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

The vulnerability is also documented in the databases at X-Force (93747) and Tenable (74374). See 12858, 13104, 13498 and 13512 for similar entries.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.9
VulDB Temp Score: 5.2
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VulDB Reliability: 🔍

CVSSv2info

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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

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Nessus ID: 74374
Nessus Name: Debian DSA-2952-1 : kfreebsd-9 - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 702952
OpenVAS Name: Debian Security Advisory DSA 2952-1 (kfreebsd-9 - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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Timelineinfo

05/27/2014 🔍
06/03/2014 +7 days 🔍
06/03/2014 +0 days 🔍
06/03/2014 +0 days 🔍
06/03/2014 +0 days 🔍
06/10/2014 +7 days 🔍
06/10/2014 +0 days 🔍
06/10/2014 +0 days 🔍
06/10/2014 +0 days 🔍
06/11/2014 +1 days 🔍
06/20/2021 +2566 days 🔍

Sourcesinfo

Product: freebsd.org

Advisory: FreeBSD-EN-14:06.exec
Researcher: Ivo De Decker
Organization: Debian
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-3880 (🔍)
OVAL: 🔍

X-Force: 93747 - FreeBSD execve denial of service, Medium Risk
SecurityTracker: 1030370 - Microsoft Internet Explorer Multiple Memory Corruption Flaws Let Remote Users Execute Arbitrary Code
Vulnerability Center: 44958 - FreeBSD Kernel 8.4, 9.1, 9.2, 10.0 Local DoS Vulnerability via execve and fexecve, Medium
SecurityFocus: 67951 - FreeBSD CVE-2014-3880 Local Denial of Service Vulnerability
Secunia: 58625 - FreeBSD execve and fexecve Denial of Service Security Issue, Not Critical

See also: 🔍

Entryinfo

Created: 06/10/2014 17:45
Updated: 06/20/2021 18:33
Changes: 06/10/2014 17:45 (73), 05/30/2017 11:11 (15), 06/20/2021 18:25 (3), 06/20/2021 18:33 (1)
Complete: 🔍

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