CVE-2011-1002

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 29.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2011-02-22 · updated 2026-06-16
Weakness: CWE-835

Description

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 products

avahi: through 0.6.28; 0.1, 0.2, 0.3, 0.4, 0.5, 0.5.1 (+28)
Canonical Ubuntu Linux: 8.04, 9.10, 10.04, 10.10
Debian Linux: 5.0, 6.0, 7.0
Fedoraproject Fedora: 15
Red Hat Enterprise Linux: 5.0, 6.0

References

http://avahi.org/ticket/325
http://git.0pointer.de/?p=avahi.git%3Ba=commit%3Bh=46109dfec75534fe270c0ab902576f685d5ab3a6
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055858.html
http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html
http://openwall.com/lists/oss-security/2011/02/18/1
http://openwall.com/lists/oss-security/2011/02/18/4
http://osvdb.org/70948
http://secunia.com/advisories/43361
http://secunia.com/advisories/43465
http://secunia.com/advisories/43605
http://secunia.com/advisories/43673
http://secunia.com/advisories/44131

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