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CVE-2011-1002

33
FAUCET Score

CVE-2011-1002 describes a denial-of-service vulnerability in Avahi versions prior to 0.6.29, affecting various Linux distributions including Avahi, Canonical, Debian, FedoraProject, and Red Hat. This flaw allows remote attackers to trigger an infinite loop by sending empty mDNS IPv4 or IPv6 UDP packets to port 5353. The vulnerability has a CVSS score of 5.0, indicating a medium severity, with low attack complexity and potential for partial availability impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.6.28CPE matchmatch criteria
cpe:2.3:a:avahi:avahi:*:*:*:*:*:*:*:*
0.1CPE matchmatch criteria
cpe:2.3:a:avahi:avahi:0.1:*:*:*:*:*:*:*
0.2CPE matchmatch criteria
cpe:2.3:a:avahi:avahi:0.2:*:*:*:*:*:*:*
0.3CPE matchmatch criteria
cpe:2.3:a:avahi:avahi:0.3:*:*:*:*:*:*:*
0.4CPE matchmatch criteria
cpe:2.3:a:avahi:avahi:0.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
29.36%
Probability of exploitation in next 30 days
EPSS Percentile
98.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.2936 is in the 98th percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: avahi-0:0.6.16-10.el5_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: avahi-0:0.6.25-11.el6
View patch

Vendor Advisories (1)

redhatCVE-2011-1002Moderate

avahi: daemon infinite loop triggered by an empty UDP packet (CVE-2010-2244 fix regression)

Jan 4, 2011

References

avahi.org / ticket/325
Broken Link
git.0pointer.de
Broken Link
lists.fedoraproject.org / pipermail/package-announce/2011-March/055858.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2011-04/msg00000.html
Third Party Advisory
openwall.com / lists/oss-security/2011/02/18/1
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/02/18/4
Mailing ListThird Party Advisory
osvdb.org / 70948
Broken Link
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
secunia.com / advisories/43361
Broken LinkVendor Advisory
secunia.com / advisories/43465
Broken Link
secunia.com / advisories/43605
Broken Link
secunia.com / advisories/43673
Broken Link
secunia.com / advisories/44131
Broken Link
exchange.xforce.ibmcloud.com / vulnerabilities/65524
Not Applicable
exchange.xforce.ibmcloud.com / vulnerabilities/65525
Third Party AdvisoryVDB Entry
ubuntu.com / usn/usn-1084-1
Third Party Advisory
debian.org / security/2011/dsa-2174
Third Party Advisory
mandriva.com / security/advisories
Broken Link
mandriva.com / security/advisories
Broken Link
openwall.com / lists/oss-security/2011/02/22/9
Mailing ListThird Party Advisory
redhat.com / support/errata/RHSA-2011-0436.html
Broken Link
redhat.com / support/errata/RHSA-2011-0779.html
Broken Link
securityfocus.com / bid/46446
Broken LinkThird Party AdvisoryVDB Entry
vupen.com / english/advisories/2011/0448
Broken LinkVendor Advisory
vupen.com / english/advisories/2011/0499
Broken LinkVendor Advisory
vupen.com / english/advisories/2011/0511
Broken Link
vupen.com / english/advisories/2011/0565
Broken Link
vupen.com / english/advisories/2011/0601
Broken Link
vupen.com / english/advisories/2011/0670
Broken Link
vupen.com / english/advisories/2011/0969
Broken Link
xorl.wordpress.com / 2011/02/20/cve-2011-1002-avahi-daemon-remote-denial-of-service
ExploitThird Party Advisory