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mirror of https://blitiri.com.ar/repos/chasquid synced 2026-10-28 15:02:28 +00:00
Alberto Bertogli 2612c8bfa1 dkim: Fail verification if l= is too large
Currently, if the value of the l= tag is larger than the body, that
causes an out-of-bound access and the server crashes.

The RFC is clear that the value should be <= the size of the
canonicalized body.

This patch fixes the problem by validating the length appropriately, and
returning a permanent failure if it's invalid.

Thanks to John JEAN <john@wargan.com> who reported a similar issue
(fixed in a previous patch), which led to finding this bug.
2026-10-09 21:32:22 +01:00
2026-10-09 00:00:12 +01:00
2023-10-03 23:34:23 +01:00
2016-11-03 00:51:59 +00:00
2026-10-04 18:39:56 +01:00

chasquid

chasquid is an SMTP (email) server with a focus on simplicity, security, and ease of operation.

It is designed mainly for individuals and small groups.

It's written in Go, and distributed under the Apache license 2.0.

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Docs OFTC IRC

Features

  • Easy
    • Easy to configure.
    • Hard to mis-configure in ways that are harmful or insecure (e.g. no open relay, or clear-text authentication).
    • Monitoring HTTP server, with exported variables and tracing to help debugging.
    • Integrated with Debian, Ubuntu, Arch, and Alpine.
    • Supports using Dovecot for authentication.
  • Useful
    • Multiple/virtual domains, with per-domain users and aliases.
    • Suffix dropping (user+something@domain → user@domain).
    • Hooks for integration with greylisting, anti-virus, and anti-spam.
    • International usernames (SMTPUTF8) and domain names (IDNA).
  • Secure
    • Tracking of per-domain TLS support, prevents connection downgrading.
    • Multiple TLS certificates.
    • Easy integration with Let's Encrypt.
    • SPF and MTA-STS checking.
    • DKIM support (signing and verification).

Documentation

The how-to guide and the installation guide are the best starting points on how to install, configure and run chasquid.

You will find all documentation here.

Contact

If you have any questions, comments or patches, please send them to the mailing list, chasquid@googlegroups.com.
To subscribe, send an email to chasquid+subscribe@googlegroups.com.

Security issues can be reported privately to albertito@blitiri.com.ar.

Bug reports and pull requests on GitHub are also welcome.

You can also reach out via IRC, #chasquid on OFTC.

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