Critical severity9.8NVD Advisory· Published Dec 27, 2021· Updated Jun 17, 2026
CVE-2021-45709
CVE-2021-45709
Description
An issue was discovered in the crypto2 crate through 2021-10-08 for Rust. During Chacha20 encryption and decryption, an unaligned read of a u32 may occur.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
crypto2crates.io | <= 0.1.2 | — |
Affected products
2- rust/crypto2description
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-9hfg-pxr6-q4vpghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-45709ghsaADVISORY
- raw.githubusercontent.com/rustsec/advisory-db/main/crates/crypto2/RUSTSEC-2021-0121.mdnvdThird Party AdvisoryWEB
- rustsec.org/advisories/RUSTSEC-2021-0121.htmlnvdThird Party AdvisoryWEB
- github.com/shadowsocks/crypto2/issues/27ghsaWEB
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