CVE-2018-20993: Uncontrolled recursion in rust-yaml

August 25, 2021 (updated June 13, 2023)

Affected versions of this crate did not prevent deep recursion while deserializing data structures. This allows an attacker to make a YAML file with deeply nested structures that causes an abort while deserializing it. The flaw was corrected by checking the recursion depth.

References

github.com/advisories/GHSA-hv87-47h9-jcvq
github.com/chyh1990/yaml-rust
github.com/chyh1990/yaml-rust/commit/d61b49cb90391fc4f7f72a1abe597476c8651a07
github.com/chyh1990/yaml-rust/pull/109
nvd.nist.gov/vuln/detail/CVE-2018-20993
rustsec.org/advisories/RUSTSEC-2018-0006.html

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