#VU25032 Resource management error in Zcash
Published: February 7, 2020
Vulnerability identifier: #VU25032
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: N/A
CWE-ID: CWE-399
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Zcash
Zcash
Software vendor:
Electric Coin Co.
Electric Coin Co.
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to consensus failure in the network in zcashd, that causes nodes to permanently reject blocks based on their timestamps using subjective information. A remote attacker can isolate the node on the network, potentially tricking a miner or mining pool into rejecting a valid chain. An attacker could have strategically exploited this issue to 51% attack some nodes’ view of the chain and perform double-spending attacks.
Remediation
Install updates from vendor's website.