Arch Linux: 201707-7 Low Severity Libdwarf Denial of Service

Arch Linux Security Advisory ASA-201707-7
========================================
Severity: Low
Date    : 2017-07-11
CVE-ID  : CVE-2017-9998
Package : libdwarf
Type    : denial of service
Remote  : No
Link    : https://security.archlinux.org/AVG-332

Summary
======
The package libdwarf before version 20170709-1 is vulnerable to denial
of service.

Resolution
=========
Upgrade to 20170709-1.

# pacman -Syu "libdwarf>=20170709-1"

The problem has been fixed upstream in version 20170709.

Workaround
=========
None.

Description
==========
The _dwarf_decode_s_leb128_chk function in dwarf_leb.c in libdwarf
through 2017-06-28 allows attackers to cause a denial of service
(Segmentation fault) via a crafted file.

Impact
=====
An attacker can cause a denial of service by tricking a local user into
submitting a crafted file to a program linked against libdwarf.

References
=========
https://bugzilla.redhat.com/show_bug.cgi?id=1465756
https://security.archlinux.org/CVE-2017-9998