CVE-2019-14318

Crypto++ 8.3.0 and earlier contains a timing side channel in ECDSA signature generation. This allows a local or remote attacker, able to measure the duration of hundreds to thousands of signing operations, to compute the private key used. The issue occurs because scalar multiplication in ecp.cpp (prime field curves, small leakage) and algebra.cpp (binary field curves, large leakage) is not constant time and leaks the bit length of the scalar among other information.

• CWE-417

• http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00066.html
• http://www.openwall.com/lists/oss-security/2019/10/02/2
• https://eprint.iacr.org/2011/232.pdfExploit, Third Party Advisory
• https://github.com/weidai11/cryptopp/issues/869Patch, Third Party Advisory
• https://minerva.crocs.fi.muni.cz/
• https://tches.iacr.org/index.php/TCHES/article/view/7337Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00066.html
• http://www.openwall.com/lists/oss-security/2019/10/02/2
• https://eprint.iacr.org/2011/232.pdfExploit, Third Party Advisory
• https://github.com/weidai11/cryptopp/issues/869Patch, Third Party Advisory
• https://minerva.crocs.fi.muni.cz/
• https://tches.iacr.org/index.php/TCHES/article/view/7337Third Party Advisory

Published

Jul 30, 2019

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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