~ / search / GHSA-369h-pjr2-6wrh

GHSA-369h-pjr2-6wrh

Uncontrolled recursion in trust-dns-proto

Source: GitHub Advisory Database (reviewed) High CVE-2018-20994

Packages

EcosystemPackageAffectedFixed in
crates.io trust-dns-proto < 0.4.3 0.4.3

Details

As written in the advisory (Markdown source, shown as plain text).

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.

References

External links from the advisory. They lead to third-party sites.