Vulnerability identifier: #VU29134
Vulnerability risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-119
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Consul
Server applications /
Other server solutions
Consul Enterprise
Server applications /
Other server solutions
Vendor: HashiCorp
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in HTTP API and DNS caching feature. A remote attacker can trigger memory corruption and cause a denial of service condition on the target system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Consul: 1.7.0 - 1.7.3, 1.6.0 - 1.6.5, 1.5.0 - 1.5.3, 1.4.0 - 1.4.5, 1.3.0 - 1.3.1, 1.2.0 - 1.2.4, 1.1.0 - 1.1.1, 1.0.0 - 1.0.8, 0.9.0 - 0.9.4, 0.8.0 - 0.8.5, 0.7.0 - 0.7.5, 0.6.0 - 0.6.4, 0.5.0 - 0.5.2, 0.4.0 - 0.4.1, 0.3.0 - 0.3.1, 0.2.0 - 0.2.1, 0.1.0
Consul Enterprise: 1.7.0 - 1.7.3, 1.6.0 - 1.6.5, 1.5.0 - 1.5.3, 1.4.0 - 1.4.5, 1.3.0 - 1.3.1, 1.2.0 - 1.2.4, 1.1.0 - 1.1.1, 1.0.0 - 1.0.8, 0.9.0 - 0.9.4, 0.8.0 - 0.8.5, 0.7.0 - 0.7.5, 0.6.0 - 0.6.4, 0.5.0 - 0.5.2, 0.4.0 - 0.4.1, 0.3.0 - 0.3.1, 0.2.0 - 0.2.1, 0.1.0
External links
http://github.com/hashicorp/consul/blob/v1.6.6/CHANGELOG.md
http://github.com/hashicorp/consul/blob/v1.7.4/CHANGELOG.md
http://github.com/hashicorp/consul/pull/8023
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.