COLDCARD Seed Generation Flaw Linked to Nearly $89 Million Bitcoin Theft

Galaxy Research linked a suspected Bitcoin theft of 1,367.05 BTC to weak COLDCARD seeds. Coinkite says updates cannot repair seeds already generated on devices...

CVE-2019-14356

On Coldcard MK1 and MK2 devices, a side channel for the row-based OLED display was found. The power consumption of each row-based display cycle depends on the number of illuminated pixels, allowing a partial recovery of display contents. For example, a hardware implant in the USB cable might be...

Buffer overflow

DISPUTED On Coldcard MK1 and MK2 devices, a side channel for the row-based OLED display was found. The power consumption of each row-based display cycle depends on the number of illuminated pixels, allowing a partial recovery of display contents. For example, a hardware implant in the USB cable...

CVE-2019-14356

CVE-2019-14356 affects Coldcard MK1 and MK2 devices. A side-channel in the OLED row-based display lets an attacker who can control or monitor USB power measurements during times secrets are shown partially recover display contents, potentially exposing PINs and BIP39 mnemonics. The vulnerability ...