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

Low Nessus Plugin ID 87704

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.

Solution

Update the affected packages.

See Also

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=205813

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=205814

https://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?b0d6d8b2

http://www.nessus.org/u?b7fa189b

http://www.nessus.org/u?4afe6a5a

Plugin Details

Severity: Low

ID: 87704

File Name: freebsd_pkg_b56fe6bbb1b111e59728002590263bf5.nasl

Version: 2.7

Type: local

Published: 2016/01/04

Updated: 2018/11/23

Dependencies: 12634

Risk Information

Risk Factor: Low

CVSS v2.0

Base Score: 2.1

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P

CVSS v3.0

Base Score: 6.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:qemu, p-cpe:/a:freebsd:freebsd:qemu-devel, p-cpe:/a:freebsd:freebsd:qemu-sbruno, p-cpe:/a:freebsd:freebsd:qemu-user-static, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Patch Publication Date: 2016/01/03

Vulnerability Publication Date: 2015/10/16

Reference Information

CVE: CVE-2015-8345