[arch-security] [ASA-201509-10] rpcbind: denial of service

[Remi Gacogne]

Arch Linux Security Advisory ASA-201509-10
==========================================

Severity: High
Date    : 2015-09-25
CVE-ID  : CVE-2015-7236
Package : rpcbind
Type    : denial of service
Remote  : Yes
Link    : https://wiki.archlinux.org/index.php/CVE

Summary
=======

The package rpcbind before version 0.2.3-2 is vulnerable to denial of
service.

Resolution
==========

Upgrade to 0.2.3-2.

# pacman -Syu "rpcbind>=0.2.3-2"

The problem has not been fixed upstream yet.

Workaround
==========

None.

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

A use-after-free vulnerability has been found in rpcbind, leading to
memory corruption then crash in the svc_dodestroy() function while
trying to free a corrupted xprt->xp_netid pointer.

Impact
======

A remote unauthenticated attacker can crash the rpcbind process, causing
a denial of service of RPC-based services.

References
==========

https://access.redhat.com/security/cve/CVE-2015-7236
https://bugs.archlinux.org/task/46341
http://seclists.org/oss-sec/2015/q3/561

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