CVE-2020-1946

Publication date 31 December 2020

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

In Apache SpamAssassin before 3.4.5, malicious rule configuration (.cf) files can be configured to run system commands without any output or errors. With this, exploits can be injected in a number of scenarios. In addition to upgrading to SA version 3.4.5, users should only use update channels or 3rd party .cf files from trusted places.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
spamassassin	20.10 groovy	Not affected
	20.04 LTS focal	Fixed 3.4.4-1ubuntu1.1
	18.04 LTS bionic	Fixed 3.4.2-0ubuntu0.18.04.5
	16.04 LTS xenial	Fixed 3.4.2-0ubuntu0.16.04.5
	14.04 LTS trusty	Fixed 3.4.2-0ubuntu0.14.04.1+esm3 Ubuntu Pro

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Notes

sbeattie

command injection in configuration parsing

Patch details

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

Package	Patch details
spamassassin	Upstream: https://svn.apache.org/viewvc/spamassassin/branches/3.4/lib/Mail/SpamAssassin/Conf/Parser.pm?r1=1864416&r2=1876381&pathrev=1876381 Upstream: 2bffc77

Severity score breakdown

Parameter	Value
Base score	9.8 · Critical
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H