Little Snitch up to 3.6.1 Kernel API Call memory corruption

Summaryinfo

A vulnerability classified as critical has been found in Little Snitch up to 3.6.1. The impacted element is an unknown function of the component Kernel API Call Handler. The manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2016-8661. Local access is required to approach this attack. No exploit exists.

Detailsinfo

A vulnerability was found in Little Snitch up to 3.6.1. It has been rated as critical. This issue affects some unknown processing of the component Kernel API Call Handler. 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. The summary by CVE is:

Little Snitch version 3.0 through 3.6.1 suffer from a buffer overflow vulnerability that could be locally exploited which could lead to an escalation of privileges (EoP) and unauthorised ring0 access to the operating system. The buffer overflow is related to insufficient checking of parameters to the "OSMalloc" and "copyin" kernel API calls.

The bug was discovered 11/15/2016. The weakness was disclosed 11/15/2016 by Patrick Wardle (Website). The advisory is shared at speakerdeck.com. The identification of this vulnerability is CVE-2016-8661 since 10/14/2016. The exploitation is known to be easy. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

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 vulnerability database at SecurityFocus (BID 94352†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

• Little Snitch

Version

• 3.6.0
• 3.6.1

CPE 2.3info

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CPE 2.2info

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Entryinfo

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

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