FreeBSD : qemu -- denial of service vulnerabilities in eepro100 NIC support (b56fe6bb-b1b1-11e5-9728-002590263bf5)

This script is Copyright (C) 2016-2017 Tenable Network Security, Inc.


Synopsis :

The remote FreeBSD host is missing one or more security-related
updates.

Description :

Prasad J Pandit, Red Hat Product Security Team, reports :

Qemu emulator built with the i8255x (PRO100) emulation support is
vulnerable to an infinite loop issue. It could occur while processing
a chain of commands located in the Command Block List (CBL). Each
Command Block(CB) points to the next command in the list. An infinite
loop unfolds if the link to the next CB points to the same block or
there is a closed loop in the chain.

A privileged(CAP_SYS_RAWIO) user inside guest could use this flaw to
crash the Qemu instance resulting in DoS.

See also :

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=205813
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=205814
http://www.openwall.com/lists/oss-security/2015/11/25/3
https://lists.gnu.org/archive/html/qemu-devel/2015-10/msg03911.html
http://www.nessus.org/u?c971a6fb
http://www.nessus.org/u?b7fa189b
http://www.nessus.org/u?97af69ce

Solution :

Update the affected packages.

Risk factor :

Low / CVSS Base Score : 2.1
(CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P)

Family: FreeBSD Local Security Checks

Nessus Plugin ID: 87704 ()

Bugtraq ID:

CVE ID: CVE-2015-8345

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