The following security updates are available for Arch Linux:

ASA-201807-15: wesnoth: arbitrary code execution
ASA-201807-16: libextractor: denial of service

ASA-201807-15: wesnoth: arbitrary code execution

Arch Linux Security Advisory ASA-201807-15
==========================================

Severity: High
Date : 2018-07-25
CVE-ID : CVE-2018-1999023
Package : wesnoth
Type : arbitrary code execution
Remote : Yes
Link : https://security.archlinux.org/AVG-741

Summary
=======

The package wesnoth before version 1.14.4-1 is vulnerable to arbitrary
code execution.

Resolution
==========

Upgrade to 1.14.4-1.

# pacman -Syu "wesnoth>=1.14.4-1"

The problem has been fixed upstream in version 1.14.4.

Workaround
==========

None.

Description
===========

"The Battle for Wesnoth", which allows arbitrary code execution by
exploiting a vulnerability within the Lua scripting language engine
which allows escaping existing sandbox measures in place and executing
untrusted bytecode

Impact
======

A remote attacker is able to execute arbitrary code when a user
downloads game content in a multiplayer game or via a player content
distribution server.

References
==========

https://marc.info/?l=oss-security&m=153227302330837&w=2
http://www.openwall.com/lists/oss-security/2018/07/20/1
https://github.com/wesnoth/wesnoth/commit/d911268a783467842d38eae7ac1630f1fea41318
https://security.archlinux.org/CVE-2018-1999023

ASA-201807-16: libextractor: denial of service

Arch Linux Security Advisory ASA-201807-16
==========================================

Severity: Medium
Date : 2018-07-26
CVE-ID : CVE-2017-17440
Package : libextractor
Type : denial of service
Remote : Yes
Link : https://security.archlinux.org/AVG-541

Summary
=======

The package libextractor before version 1.7-1 is vulnerable to denial
of service.

Resolution
==========

Upgrade to 1.7-1.

# pacman -Syu "libextractor>=1.7-1"

The problem has been fixed upstream in version 1.7.

Workaround
==========

None.

Description
===========

GNU Libextractor 1.6 allows remote attackers to cause a denial of
service (NULL pointer dereference and application crash) via a crafted
GIF, IT (Impulse Tracker), NSFE, S3M (Scream Tracker 3), SID, or XM
(eXtended Module) file, as demonstrated by the
EXTRACTOR_xm_extract_method function in plugins/xm_extractor.c.

Impact
======

A remote attacker is able to crash the application via a specially
crafted file.

References
==========

https://bugs.debian.org/883528#35
https://gnunet.org/git/libextractor.git/commit/?id=7cc63b001ceaf81143795321379c835486d0c92e
https://security.archlinux.org/CVE-2017-17440