CVE-2024-28054

Publication date 18 March 2024

Last updated 19 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

Amavis before 2.12.3 and 2.13.x before 2.13.1, in part because of its use of MIME-tools, has an Interpretation Conflict (relative to some mail user agents) when there are multiple boundary parameters in a MIME email message. Consequently, there can be an incorrect check for banned files or malware.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
amavisd-new	25.10 questing	Fixed 1:2.13.0-6ubuntu1
	25.04 plucky	Fixed 1:2.13.0-6ubuntu1
	24.10 oracular	Fixed 1:2.13.0-6ubuntu1
	24.04 LTS noble	Fixed 1:2.13.0-3ubuntu2
	23.10 mantic	Fixed 1:2.13.0-3ubuntu1.1
	22.04 LTS jammy	Fixed 1:2.12.2-1ubuntu1.1
	20.04 LTS focal	Fixed 1:2.11.0-6.1ubuntu1.1
	18.04 LTS bionic	Needs evaluation
	16.04 LTS xenial	Needs evaluation
	14.04 LTS trusty	Needs evaluation

Notes

mdeslaur

The d921bc52 commit allows using ambiguous_content from libmime-tools-perl 5.514 if it is available. That version is only in noble+, but the previous commit will still work.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
amavisd-new	Upstream: 78c4b70 Upstream: d921bc5 Upstream: c6c4a4c

Severity score breakdown

Parameter	Value
Base score	7.4 · High
Attack vector	Network
Attack complexity	High
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

References

Related Ubuntu Security Notices (USN)

USN-6790-1
amavisd-new vulnerability
28 May 2024