Information disclosure in Node.js - CVE-2017-15897
Published: December 11, 2017 / Updated: August 4, 2020
Vulnerability identifier: #VU33508
CSH Severity: Low
CVSS v4: 2.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-15897
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote authenticated user to gain access to sensitive information.
Node.js had a bug in versions 8.X and 9.X which caused buffers to not be initialized when the encoding for the fill value did not match the encoding specified. For example, 'Buffer.alloc(0x100, "This is not correctly encoded", "hex");' The buffer implementation was updated such that the buffer will be initialized to all zeros in these cases.
Affected software
Node.js
nodejs-current (Alpine package)
nodejs-current (Alpine package)
How to mitigate CVE-2017-15897
Install update from vendor's website.
nodejs-current (Alpine package) - update to 9.2.1-r0