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CVE-2022-30256

Status Candidate

Overview

An issue was discovered in MaraDNS Deadwood through 3.5.0021 that allows variant V1 of unintended domain name resolution. A revoked domain name can still be resolvable for a long time, including expired domains and taken-down malicious domains. The effects of an exploit would be widespread and highly impactful, because the exploitation conforms to de facto DNS specifications and operational practices, and overcomes current mitigation patches for "Ghost" domain names.

Related Files

Ubuntu Security Notice USN-6271-1
Posted Aug 3, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6271-1 - Xiang Li discovered that MaraDNS incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially crafted input file, a remote attacker could possibly use this issue to obtain sensitive information. Huascar Tejeda discovered that MaraDNS incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2022-30256, CVE-2023-31137
SHA-256 | 7f2d611797f2f8ddadb470f6a8f078b6453bb40ffcdec8228c380432f2e47d88
Debian Security Advisory 5441-1
Posted Jun 30, 2023
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5441-1 - Two vulnerabilities were found in maradns, an open source domain name system (DNS) implementation, that may lead to denial of service and unintended domain name resolution.

tags | advisory, denial of service, vulnerability
systems | linux, debian
advisories | CVE-2022-30256, CVE-2023-31137
SHA-256 | 42371e88c20f5ab5164b61bc77060d6493521b1c8de05e5c0712deb0f97d3b4c
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