HIGH7.5

GHSA-j2r6-2m5c-vgh5

Counter overflow in chacha20

Details

An issue was discovered in the chacha20 crate before 0.2.3 for Rust. A ChaCha20 counter overflow makes it easier for attackers to determine plaintext.

Are you affected?

Enter the version of the package you're using.

Affected packages

crates.io/chacha20

Introduced in: 0Fixed in: 0.2.3

Upgrade chacha20 to 0.2.3 or newer (ecosystem crates.io).

References

https://nvd.nist.gov/vuln/detail/CVE-2019-25005[ADVISORY]
https://github.com/RustCrypto/stream-ciphers/pull/64[WEB]
https://github.com/RustCrypto/stream-ciphers/tree/master/chacha20[PACKAGE]
https://rustsec.org/advisories/RUSTSEC-2019-0029.html[WEB]