FreeBSD 7.3/7.4/8.1/8.2/9.0 memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.8$0-$5k0.00

A vulnerability was found in FreeBSD 7.3/7.4/8.1/8.2/9.0 (Operating System). It has been rated as critical. Affected by this issue is an unknown code. The manipulation 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. CVE summarizes:

Buffer overflow in the kernel in FreeBSD 7.3 through 9.0-RC1 allows local users to cause a denial of service (panic) or possibly gain privileges via a bind system call with a long pathname for a UNIX socket.

The weakness was shared 10/17/2011 by Shaun Colley (Website). The advisory is shared for download at security.freebsd.org. This vulnerability is handled as CVE-2011-4062. The exploitation is known to be easy. The attack needs to be approached locally. No form of authentication is required for exploitation. Technical details are unknown but a public exploit is available.

A public exploit has been developed by Shaun Colley in Shell File and been published even before and not after the advisory. The exploit is available at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 17 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 56586 (Debian DSA-2325-1 : kfreebsd-8 - privilege escalation/denial of service), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks.

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 Tenable (56586) and Exploit-DB (17908).

Productinfo

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 8.8

VulDB Base Score: 9.3
VulDB Temp Score: 8.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: Yes
Remote: No

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 56586
Nessus Name: Debian DSA-2325-1 : kfreebsd-8 - privilege escalation/denial of service
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 70540
OpenVAS Name: Debian Security Advisory DSA 2325-1 (kfreebsd-8)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/29/2011 🔍
09/29/2011 +0 days 🔍
09/30/2011 +1 days 🔍
09/30/2011 +0 days 🔍
10/15/2011 +14 days 🔍
10/17/2011 +2 days 🔍
10/17/2011 +0 days 🔍
10/24/2011 +7 days 🔍
10/26/2011 +2 days 🔍
03/23/2015 +1244 days 🔍
11/24/2021 +2438 days 🔍

Sourcesinfo

Product: freebsd.org

Advisory: DSA-2325
Researcher: Shaun Colley
Status: Confirmed

CVE: CVE-2011-4062 (🔍)
OVAL: 🔍

Vulnerability Center: 33600 - Linux Kernel Unix Domain Socket Handling Vulnerability Allows Local Privilege Escalation, High
SecurityFocus: 49862 - FreeBSD UNIX Domain Socket Local Privilege Escalation Vulnerabiity
Secunia: 46202
OSVDB: 75788

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

Entryinfo

Created: 03/23/2015 16:50
Updated: 11/24/2021 04:41
Changes: 03/23/2015 16:50 (59), 04/04/2017 11:21 (17), 11/24/2021 04:20 (5), 11/24/2021 04:32 (1), 11/24/2021 04:41 (2)
Complete: 🔍

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