There's a stack overflow leading to a crash when Trust-DNS's parses a malicious DNS packet. Affected versions of this crate did not properly handle parsing of DNS message compression (RFC1035 section 4.1.4). The parser could be tricked into infinite loop when a compression offset pointed back to the same domain name to be parsed. This allows an attacker to craft a malicious DNS packet which when consumed with Trust-DNS could cause stack overflow and crash the affected software.
{ "nvd_published_at": null, "cwe_ids": [ "CWE-674" ], "severity": "HIGH", "github_reviewed": true, "github_reviewed_at": "2021-08-19T21:24:41Z" }