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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 d...
CVE-2019-14318
First seen on SecPulse
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2019-14318 libcrypto++ Fixed in: 5.6.4-9
Original description The description as published by the source.
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.
References
- advisory tches.iacr.org
- patch github.com
- report eprint.iacr.org
- web lists.opensuse.org
- web openwall.com
- web minerva.crocs.fi.muni.cz