CVE-2021-45709
CRITICALCVSS 9.8/10EPSS 0.75%
Last modified
CVE-2021-45709 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 0.75% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Crypto2 Project | Crypto2 | All versions |
References
- https://rustsec.org/advisories/RUSTSEC-2021-0121.htmlThird Party Advisory
- https://rustsec.org/advisories/RUSTSEC-2021-0121.htmlThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-45709?
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.
How severe is CVE-2021-45709?
CVE-2021-45709 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.75% probability of exploitation in the next 30 days.
How do I fix CVE-2021-45709?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-45709?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST