RUSTSEC-2021-0069

    Dashboard / Vulnerabilities / RUSTSEC-2021-0069

    RUSTSEC-2021-0069

    Published: 22 May 2021Last Modified: 8 Nov 2023

    Summary: SMTP command injection in body

    Details: Affected versions of lettre allowed SMTP command injection through an attacker's controlled message body. The module for escaping lines starting with a period wouldn't catch a period that was placed after a double CRLF sequence, allowing the attacker to end the current message and write arbitrary SMTP commands after it. The flaw is fixed by correctly handling consecutive CRLF sequences.

    References: https://crates.io/crates/lettre, https://rustsec.org/advisories/RUSTSEC-2021-0069.html, https://github.com/lettre/lettre/pull/627/commits/93458d01fed0ec81c0e7b4e98e6f35961356fae2

    Affected packages

    Package

    Name: lettre

    Purl: pkg:cargo/lettre

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0.7.0
    Fixed -0.9.6

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    RUSTSEC-2021-0069 | CVE-DB