CVE-2018-12435

Sažetak

Botan 2.5.0 through 2.6.0 before 2.7.0 allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP, related to dsa/dsa.cpp, ec_group/ec_group.cpp, and ecdsa/ecdsa.cpp. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.

Reference

https://botan.randombit.net/security.html
https://github.com/randombit/botan/commit/48fc8df51d99f9d8ba251219367b3d629cc848e3
https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/

CVSS

Base:	1.9
Impact:	2.9
Exploitability:	3.4

Pristup

Vektor	Složenost	Autentikacija
LOCAL	MEDIUM	NONE

Impact

Povjerljivost	Cjelovitost	Dostupnost
PARTIAL	NONE	NONE

CVSS vektor

AV:L/AC:M/Au:N/C:P/I:N/A:N

Zadnje važnije ažuriranje

22-08-2018 - 19:57

Objavljeno

15-06-2018 - 02:29