CVE-2016-0702
Medium
Description
The MOD_EXP_CTIME_COPY_FROM_PREBUF function in crypto/bn/bn_exp.c in OpenSSL 1.0.1 before 1.0.1s and 1.0.2 before 1.0.2g does not properly consider cache-bank access times during modular exponentiation, which makes it easier for local users to discover RSA keys by running a crafted application on the same Intel Sandy Bridge CPU core as a victim and leveraging cache-bank conflicts, aka a "CacheBleed" attack.
SeverityMedium
CVSS5.1
Exploit probability—
Product
Openssl
PublishedMar 3, 2016
First seenMar 3, 2016
How to fix
Update
- nodejs node.js4.3.2, 5.7.1 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| openssl openssl | 1.0.1, 1.0.1a, 1.0.1b, 1.0.1c, 1.0.1d, 1.0.1e, 1.0.1f, 1.0.1g, 1.0.1h, 1.0.1i, 1.0.1j, 1.0.1k, 1.0.1l, 1.0.1m, 1.0.1n, 1.0.1o, 1.0.1p, 1.0.1q, 1.0.1r, 1.0.2, 1.0.2a, 1.0.2b, 1.0.2c, 1.0.2d, 1.0.2e, 1.0.2f | — |
| nodejs node.js | 4.0.0 ≤ v ≤ 4.1.2, 4.2.0 ≤ v < 4.3.2, 5.0.0 ≤ v < 5.7.1 | 4.3.2, 5.7.1 |
| debian debian_linux | 7.0, 8.0 | — |
| canonical ubuntu_linux | 12.04, 14.04, 15.10 | — |
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