CVE-2017-3731

Truncated packet could crash via OOB read

CVE-2017-3731 is fixed in Node.js 4 on 1 platform by Node.js 4 4.7.3 (version 4.7.3), released January 31, 2017. 1 other affected product has no fix yet. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.5
No vendor severity
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.5732
99th percentile

If an SSL/TLS server or client is running on a 32-bit host, and a specific cipher is being used, then a truncated packet can cause that server or client to perform an out-of-bounds read, usually resulting in a crash. For OpenSSL 1.1.0, the crash can be triggered when using CHACHA20/POLY1305; users should upgrade to 1.1.0d. For Openssl 1.0.2, the crash can be triggered when using RC4-MD5; users who have not disabled that algorithm should update to 1.0.2k.

Where it's fixed

ProductFixed inFixReleased
Windows apps
Node.js 4 4.7.3 Node.js 4 4.7.3 Jan 31, 2017
No fix yet
Node.js 7 (Windows apps) No fix yet no-fix n/a