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[gentoo-announce] [ GLSA 202006-12 ] GNU Mailutils: Privilege escalation

Posted on 13 June 2020
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 202006-12
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https://security.gentoo.org/
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Severity: High
Title: GNU Mailutils: Privilege escalation
Date: June 13, 2020
Bugs: #700806
ID: 202006-12

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Synopsis
========
A vulnerability has been found in GNU Mailutils allowing privilege
escalation.

Background
==========
The GNU Mailutils are a collection of mail-related utilities, including
an IMAP4 server (imap4d).

Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-mail/mailutils < 3.8 >= 3.8

Description
===========
GNU Mailutils runs maidag by default with setuid root permissions.

Impact
======
An attacker can use this to write to arbitrary files as root.

Workaround
==========
There is no known workaround at this time.

Resolution
==========
All GNU Mailutils users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-mail/mailutils-3.8"

References
==========
[ 1 ] CVE-2019-18862
https://nvd.nist.gov/vuln/detail/CVE-2019-18862

Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

https://security.gentoo.org/glsa/202006-12

Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======
Copyright 2020 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5

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