CVE-2017-7526
Medium
Description
libgcrypt before version 1.7.8 is vulnerable to a cache side-channel attack resulting into a complete break of RSA-1024 while using the left-to-right method for computing the sliding-window expansion. The same attack is believed to work on RSA-2048 with moderately more computation. This side-channel requires that attacker can run arbitrary software on the hardware where the private RSA key is used.
SeverityMedium
CVSS6.1
Exploit probability—
Product
Gnupg Libgcrypt
PublishedJul 26, 2018
First seenJul 26, 2018
Weakness typeCWE-200Sensitive information exposure
How to fix
Update
- gnupg libgcrypt1.7.8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gnupg libgcrypt | v < 1.7.8 | 1.7.8 |
| canonical ubuntu_linux | 12.04, 14.04, 16.04 | — |
| debian debian_linux | 8.0, 9.0 | — |
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