Vulnerability identifier: #VU14571
Vulnerability risk: Low
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-20
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Knot Resolver
Server applications /
Other server solutions
Vendor: Nic
Description
The vulnerability allows a remote attacker to bypass security restrictions on the target system.
The vulnerability exists due to an error in DNS resolver component when processing malicious input. A remote attacker can supply specially crafted data, bypass security restrictions and poison cache.
Mitigation
Update to version 2.4.1.
Vulnerable software versions
Knot Resolver: 1.0 - 2.4
External links
http://www.knot-resolver.cz/2018-08-02-knot-resolver-2.4.1.html
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.