CVE - CVE-2024-27938

CVE-ID
CVE-2024-27938	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
Postal is an open source SMTP server. Postal versions less than 3.0.0 are vulnerable to SMTP Smuggling attacks which may allow incoming e-mails to be spoofed. This, in conjunction with a cooperative outgoing SMTP service, would allow for an incoming e-mail to be received by Postal addressed from a server that a user has 'authorised' to send mail on their behalf but were not the genuine author of the e-mail. Postal is not affected for sending outgoing e-mails as email is re-encoded with `<CR><LF>` line endings when transmitted over SMTP. This issue has been addressed and users should upgrade to Postal v3.0.0 or higher. Once upgraded, Postal will only accept End of DATA sequences which are explicitly `<CR><LF>.<CR><LF>`. If a non-compliant sequence is detected it will be logged to the SMTP server log. There are no workarounds for this issue.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://github.com/postalserver/postal/commit/0140dc4 URL:https://github.com/postalserver/postal/commit/0140dc4 MISC:https://github.com/postalserver/postal/security/advisories/GHSA-j42r-6c99-hqf2 URL:https://github.com/postalserver/postal/security/advisories/GHSA-j42r-6c99-hqf2 MISC:https://sec-consult.com/blog/detail/smtp-smuggling-spoofing-e-mails-worldwide URL:https://sec-consult.com/blog/detail/smtp-smuggling-spoofing-e-mails-worldwide MISC:https://www.postfix.org/smtp-smuggling.html URL:https://www.postfix.org/smtp-smuggling.html
Assigning CNA
GitHub (maintainer security advisories)
Date Record Created
20240228	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240228)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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