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.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://rustsec.org/advisories/RUSTSEC-2021-0069.html	Exploit Issue Tracking Patch Third Party Advisory
https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/lettre/RUSTSEC-2021-0069.md	Third Party Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:lettre:lettre::::::rust::*
	cpe:2.3:a:lettre:lettre:0.10.0:alpha1::::rust::*
	cpe:2.3:a:lettre:lettre:0.10.0:alpha2::::rust::*
	cpe:2.3:a:lettre:lettre:0.10.0:alpha3::::rust::*
	cpe:2.3:a:lettre:lettre:0.10.0:alpha4::::rust::*
	cpe:2.3:a:lettre:lettre:0.10.0:alpha5::::rust::*
	cpe:2.3:a:lettre:lettre:0.10.0:beta1::::rust::*
	cpe:2.3:a:lettre:lettre:0.10.0:beta2::::rust::*
	cpe:2.3:a:lettre:lettre:0.10.0:beta3::::rust::*
	cpe:2.3:a:lettre:lettre:0.10.0:beta4::::rust::*
	cpe:2.3:a:lettre:lettre:0.10.0:rc1::::rust::*
	cpe:2.3:a:lettre:lettre:0.10.0:rc2::::rust::*

Information

Published : 2021-08-07 23:15

Updated : 2021-08-16 12:15

NVD link : CVE-2021-38189

Mitre link : CVE-2021-38189

JSON object : View

CWE

CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

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Products Affected

lettre

lettre

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