CVE-2017-3731

High

Description

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.

SeverityHigh
CVSS7.5
Exploit probability99. percentile57.3%
ProductOpenssl
PublishedMay 4, 2017
First seenMay 4, 2017

How to fix

Affected products

ProductAffected versionsFixed in
openssl openssl1.1.0a, 1.1.0b, 1.1.0c, 1.0.2, 1.0.2a, 1.0.2b, 1.0.2c, 1.0.2d, 1.0.2e, 1.0.2f, 1.0.2h, 1.0.2i, 1.0.2j—
nodejs node.js4.0.0 ≤ v ≤ 4.1.2, 4.2.0 ≤ v < 4.7.3, 5.0.0 ≤ v ≤ 5.12.0, 6.0.0 ≤ v ≤ 6.8.1, 6.9.0 ≤ v < 6.9.5, 7.0.0 ≤ v < 7.5.04.7.3, 6.9.5, 7.5.0

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CVE-2017-3731 · Openssl · Dark Radar