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CVE-2017-7526 PUBLISHED

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.

EPSS 2.57% · 85.4th percentile

Risk Scores

EPSS Score
2.57%
85.4th percentile

Affected Products

VendorProductVersions
Ubuntu:14.04:LTSgnupg1.4.16-1ubuntu2.1, 1.4.16-1ubuntu2.5, 1.4.14-1ubuntu2
Ubuntu:16.04:LTSgnupg1.4.18-7ubuntu1, 1.4.19-6ubuntu1, 1.4.20-1ubuntu1
Ubuntu:14.04:LTSlibgcrypt111.5.3-2ubuntu4.3, 0, 1.5.0-3ubuntu3
Ubuntu:16.04:LTSlibgcrypt200, 1.6.3-2ubuntu1, 1.6.4-3

Timeline

References

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