CVE-2018-7166
First published: Sun Aug 12 2018(Updated: )
In all versions of Node.js 10 prior to 10.9.0, an argument processing flaw can cause `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.
Credit: cve-request@iojs.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/nodejs | <10.9.0 | 10.9.0 |
| Langgenius Dify Node.js | >=10.0.0<10.9.0 |
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Reference Links
- https://access.redhat.com/errata/RHSA-2018:2553
- https://nodejs.org/en/blog/vulnerability/august-2018-security-releases/
- https://github.com/nodejs/node/commit/40a7beeddac9b9ec9ef5b49157daaf8470648b08
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1622137
- https://bugzilla.redhat.com/show_bug.cgi?id=1620215
Frequently Asked Questions
What is the severity of CVE-2018-7166?
CVE-2018-7166 is considered a critical vulnerability due to the potential exposure of sensitive data through uninitialized memory.
How do I fix CVE-2018-7166?
To fix CVE-2018-7166, upgrade Node.js to version 10.9.0 or later.
Which versions of Node.js are affected by CVE-2018-7166?
CVE-2018-7166 affects all versions of Node.js prior to 10.9.0.
What vulnerability type is CVE-2018-7166?
CVE-2018-7166 is categorized as an argument processing flaw in the Node.js Buffer module.
Can CVE-2018-7166 lead to data exposure?
Yes, CVE-2018-7166 can lead to data exposure due to the returning of uninitialized memory.
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