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LIN5-23298 : Security Advisory - libgcrypt - CVE-2017-7526

Created: Jul 24, 2017    Updated: Oct 9, 2018
Resolved Date: Aug 16, 2017
Found In Version: 5.0.1.40
Fix Version: 5.0.1.41
Severity: Standard
Applicable for: Wind River Linux 5
Component/s: Userspace

Description

Libgcrypt's RSA-1024 implementation using left-to-right method for computing the sliding-window expansion was found to be vulnerable to cache side-channel attack resulting into complete break of RSA-1024. 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.

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7526

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