Input validation error in Consul - CVE-2020-25201
Published: October 26, 2020
Vulnerability identifier: #VU47913
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-25201
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to issues with the namespace replication logic. A remote authenticated attacker can write a malicious config entry that causes infinite raft and perform a denial of service (DoS) attack.
Affected software
Consul
Gentoo Linux
app-admin/consul
Gentoo Linux
app-admin/consul
How to mitigate CVE-2020-25201
Install updates from vendor's website.
Consul - update to 1.8.5
app-admin/consul - update to 1.9.17
app-admin/consul - update to 1.9.17