[arch-security] [ASA-201503-19] xerces-c: denial of service

[Levente Polyak]

Arch Linux Security Advisory ASA-201503-19
==========================================

Severity: Medium
Date    : 2015-03-20
CVE-ID  : CVE-2015-0252
Package : xerces-c
Type    : denial of service
Remote  : Yes
Link    : https://wiki.archlinux.org/index.php/CVE

Summary
=======

The package xerces-c before version 3.1.2-1 is vulnerable to denial of
service.

Resolution
==========

Upgrade to 3.1.2-1.

# pacman -Syu "xerces-c>=3.1.2-1"

The problem has been fixed upstream in version 3.1.2.

Workaround
==========

None.

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

- CVE-2015-0252 (denial of service)

The Xerces-C XML parser mishandles certain kinds of malformed input
documents, resulting in a segmentation fault during a parse operation.
The bug does not appear to allow for remote code execution, but is a
denial of service attack that in many applications may allow for an
unauthenticated attacker to supply malformed input and cause a crash.

Impact
======

A remote attacker is able to send specially crafted documents that are
resulting in a segmentation fault leading to denial of service.

References
==========

https://xerces.apache.org/xerces-c/secadv/CVE-2015-0252.txt
https://access.redhat.com/security/cve/CVE-2015-0252
https://bugs.archlinux.org/task/44272

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