In all versions of Node.js prior to 6.14.4, 8.11.4 and 10.9.0 when used with UCS-2 encoding (recognized by Node.js under the names `'ucs2'`, `'ucs-2'`, `'utf16le'` and `'utf-16le'`), `Buffer#write()` can be abused to write outside of the bounds of a single `Buffer`. Writes that start from the second-to-last position of a buffer cause a miscalculation of the maximum length of the input bytes to be written.
The product writes data past the end, or before the beginning, of the intended buffer.
| Link | Tags |
|---|---|
| http://www.securityfocus.com/bid/105127 | third party advisory vdb entry |
| https://access.redhat.com/errata/RHSA-2018:2552 | third party advisory vendor advisory |
| https://access.redhat.com/errata/RHSA-2018:2553 | third party advisory vendor advisory |
| https://access.redhat.com/errata/RHSA-2018:2944 | third party advisory vendor advisory |
| https://nodejs.org/en/blog/vulnerability/august-2018-security-releases/ | vendor advisory |
| https://access.redhat.com/errata/RHSA-2018:3537 | third party advisory vendor advisory |
| https://access.redhat.com/errata/RHSA-2018:2949 | third party advisory vendor advisory |
| https://security.gentoo.org/glsa/202003-48 | vendor advisory |