Debian DLA-87-1 : dbus security update

low Nessus Plugin ID 82232

Synopsis

The remote Debian host is missing a security update.

Description

This updates fixes multiple (local) denial of services discovered by Alban Crequy and Simon McVittie.

CVE-2014-3477

Fix a denial of service (failure to obtain bus name) in newly-activated system services that not all users are allowed to access.

CVE-2014-3638

Reduce maximum number of pending replies per connection to avoid algorithmic complexity denial of service.

CVE-2014-3639

The daemon now limits the number of unauthenticated connection slots so that malicious processes cannot prevent new connections to the system bus.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected packages.

See Also

https://lists.debian.org/debian-lts-announce/2014/11/msg00006.html

https://packages.debian.org/source/squeeze-lts/dbus

Plugin Details

Severity: Low

ID: 82232

File Name: debian_DLA-87.nasl

Version: 1.7

Type: local

Agent: unix

Published: 3/26/2015

Updated: 1/11/2021

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:dbus, p-cpe:/a:debian:debian_linux:dbus-1-dbg, p-cpe:/a:debian:debian_linux:dbus-1-doc, p-cpe:/a:debian:debian_linux:dbus-x11, p-cpe:/a:debian:debian_linux:libdbus-1-3, p-cpe:/a:debian:debian_linux:libdbus-1-dev, cpe:/o:debian:debian_linux:6.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 11/20/2014

Reference Information

CVE: CVE-2014-3477, CVE-2014-3638, CVE-2014-3639

BID: 67986, 69832, 69833, 69834