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Node.js 10.x < 10.9.0 Unintentional Exposure of Uninitialized Memory (Mac OS X)

Information

Severity

Severity

Medium

Family

Family

Denial of Service

CVSSv2 Base

CVSSv2 Base

5.0

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

Solution Type

Solution Type

Vendor Patch

Created

Created

3 years ago

Modified

Modified

3 years ago

Summary

The host is installed with Node.js and is prone to an unintentional exposure of uninitialized memory.

Insight

Insight

There is an argument processing flaw that causes Buffer.alloc() to return uninitialized memory. This method is intended to be safe and only return initialized, or cleared, memory. The third argument specifying encoding can be passed as a number, this is misinterpreted by Buffer's internal 'fill' method as the start to a fill operation. This flaw may be abused where Buffer.alloc() arguments are derived from user input to return uncleared memory blocks that may contain sensitive information.

Affected Software

Affected Software

Node.js version 10.x prior to 10.9.0.

Detection Method

Detection Method

Checks if a vulnerable version is present on the target host.

Solution

Solution

Upgrade to Node.js 10.9.0.

Common Vulnerabilities and Exposures (CVE)