GnuPG before 1.4.14, and Libgcrypt before 1.5.3 as used in GnuPG 2.0.x and possibly other products, allows local users to obtain private RSA keys via a cache side-channel attack involving the L3 cache, aka Flush+Reload. http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2013-4242
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