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

medium Nessus Plugin ID 87704
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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: Medium

ID: 87704

File Name: freebsd_pkg_b56fe6bbb1b111e59728002590263bf5.nasl

Version: 2.8

Type: local

Published: 1/4/2016

Updated: 1/4/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Low

Base Score: 2.1

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

CVSS v3

Risk Factor: Medium

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: 1/3/2016

Vulnerability Publication Date: 10/16/2015

Reference Information

CVE: CVE-2015-8345