CVE-2021-38189
CRITICALCVSS 9.8/10EPSS 1.49%
Last modified
CVE-2021-38189 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An issue was discovered in the lettre crate before 0.9.6 for Rust. In an e-mail message body, an attacker can place a . EPSS estimates a 1.49% chance of exploitation in the next 30 days.
Description
An issue was discovered in the lettre crate before 0.9.6 for Rust. In an e-mail message body, an attacker can place a . character after two <CR><LF> sequences and then inject arbitrary SMTP commands.
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 | Update |
|---|---|---|---|
| Lettre | Lettre | < 0.9.6 | — |
| Lettre | Lettre | 0.10.0 | Alpha1 |
References
- https://rustsec.org/advisories/RUSTSEC-2021-0069.htmlExploit, Issue Tracking, Patch, Third Party Advisory
- https://rustsec.org/advisories/RUSTSEC-2021-0069.htmlExploit, Issue Tracking, Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-38189?
An issue was discovered in the lettre crate before 0.9.6 for Rust. In an e-mail message body, an attacker can place a . character after two <CR><LF> sequences and then inject arbitrary SMTP commands.
How severe is CVE-2021-38189?
CVE-2021-38189 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.49% probability of exploitation in the next 30 days.
How do I fix CVE-2021-38189?
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-2021-38189?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST