CVE-2011-1002: Medium severity avahi autoip daemon vulnerability

Published Jan 4, 2011
·
Updated

avahi-core/socket.c in avahi-daemon in Avahi before 0.6.29 allows remote attackers to cause a denial of service (infinite loop) via an empty mDNS (1) IPv4 or (2) IPv6 UDP packet to port 5353. NOTE: this vulnerability exists because of an incorrect fix for CVE-2010-2244.

Affected Software

47 affected componentsFixes available
redhat/avahi<0:0.6.16-10.el5_6
0:0.6.16-10.el5_6
redhat/avahi<0:0.6.25-11.el6
0:0.6.25-11.el6
Avahi Avahi<=0.6.28
Avahi Avahi=0.1
Avahi Avahi=0.2
Avahi Avahi=0.3
Avahi Avahi=0.4
Avahi Avahi=0.5
Avahi Avahi=0.5.1
Avahi Avahi=0.5.2
Avahi Avahi=0.6.1
Avahi Avahi=0.6.2
Avahi Avahi=0.6.3
Avahi Avahi=0.6.4
Avahi Avahi=0.6.5
Avahi Avahi=0.6.6
Avahi Avahi=0.6.7
Avahi Avahi=0.6.8
Avahi Avahi=0.6.9
Avahi Avahi=0.6.10
Avahi Avahi=0.6.11
Avahi Avahi=0.6.12
Avahi Avahi=0.6.13
Avahi Avahi=0.6.14
Avahi Avahi=0.6.15
Avahi Avahi=0.6.16
Avahi Avahi=0.6.17
Avahi Avahi=0.6.18
Avahi Avahi=0.6.19
Avahi Avahi=0.6.20
Avahi Avahi=0.6.21
Avahi Avahi=0.6.22
Avahi Avahi=0.6.23
Avahi Avahi=0.6.24
Avahi Avahi=0.6.25
Avahi Avahi=0.6.26
Avahi Avahi=0.6.27
Fedoraproject Fedora=15
redhat Enterprise Linux=5.0
redhat Enterprise Linux=6.0
Canonical Ubuntu Linux=8.04
Canonical Ubuntu Linux=9.10
Canonical Ubuntu Linux=10.04
Canonical Ubuntu Linux=10.10
Debian Debian Linux=5.0
Debian Debian Linux=6.0
Debian Debian Linux=7.0

Event History

Jan 4, 2011
CVE Published
12:00 AM
Feb 22, 2011
CVE Published
via MITRE·06:00 PM
Data Sourced
via MITRE·06:00 PM
Description

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2011-1002?

CVE-2011-1002 has a high severity level as it allows remote attackers to cause a denial of service through an infinite loop.

2

How do I fix CVE-2011-1002?

To fix CVE-2011-1002, upgrade to a version of Avahi that is at least 0.6.29 or higher.

3

Which versions of Avahi are affected by CVE-2011-1002?

CVE-2011-1002 affects multiple versions of Avahi, including but not limited to 0.6.25, 0.6.5, and 0.6.27.

4

What type of vulnerability is CVE-2011-1002?

CVE-2011-1002 is a denial of service vulnerability that can be exploited via empty mDNS UDP packets.

5

What is the impact of exploiting CVE-2011-1002?

Exploiting CVE-2011-1002 can cause the Avahi daemon to enter an infinite loop, effectively disabling its mDNS services.

Contact

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