| Bug ID | 1208520 |
|---|---|
| Summary | VUL-0: CVE-2023-26249: knot: excessive TCP reconnections |
| Classification | openSUSE |
| Product | openSUSE Distribution |
| Version | Leap 15.4 |
| Hardware | Other |
| URL | https://smash.suse.de/issue/357785/ |
| OS | Other |
| Status | NEW |
| Severity | Normal |
| Priority | P5 - None |
| Component | Security |
| Assignee | michal.hrusecky@opensuse.org |
| Reporter | carlos.lopez@suse.com |
| QA Contact | security-team@suse.de |
| Found By | --- |
| Blocker | --- |
CVE-2023-26249 Knot Resolver before 5.6.0 enables attackers to consume its resources, launching amplification attacks and potentially causing a denial of service. Specifically, a single client query may lead to a hundred TCP connection attempts if a DNS server closes connections without providing a response. References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-26249 https://www.cve.org/CVERecord?id=CVE-2023-26249 https://www.knot-resolver.cz/2023-01-26-knot-resolver-5.6.0.html