GLSA 202003-24: file: Heap-based buffer overflow

http://security.gentoo.org/

Severity:	normal
Title:	file: Heap-based buffer overflow
Date:	03/15/2020
Bugs:	#698610
ID:	202003-24

Synopsis

A heap-based buffer overflow in file might allow remote attackers to execute arbitrary code.

Background

file is a utility that guesses a file format by scanning binary data for patterns.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
sys-apps/file	< 5.37-r1	>= 5.37-r1	All supported architectures

Description

It was discovered that file incorrectly handled certain malformed files.

Impact

A remote attacker could entice a user to process a specially crafted file via libmagic or file, possibly resulting in execution of arbitrary code with the privileges of the process or a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All file users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=sys-apps/file-5.37-r1"

References

CVE-2019-18218

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-202003-24.xml

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.