CVE-2009-0758

Description

The originates_from_local_legacy_unicast_socket function in avahi-core/server.c in avahi-daemon 0.6.23 does not account for the network byte order of a port number when processing incoming multicast packets, which allows remote attackers to cause a denial of service (network bandwidth and CPU consumption) via a crafted legacy unicast mDNS query packet that triggers a multicast packet storm.

Category

7.8
CVSS
Severity: High
CVSS 2.0 •
EPSS 1.26% Top 25%
Vendor Advisory mandriva.com Vendor Advisory debian.org Vendor Advisory opensuse.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.openwall.com/lists/oss-security/2009/03/02/1 mailing list
http://www.mandriva.com/security/advisories?name=MDVSA-2009:076 vendor advisory
http://www.debian.org/security/2010/dsa-2086 vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00000.html vendor advisory
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=517683
http://www.securityfocus.com/bid/33946 vdb entry
http://secunia.com/advisories/38420 third party advisory

Frequently Asked Questions

What is the severity of CVE-2009-0758?
CVE-2009-0758 has been scored as a high severity vulnerability.
How to fix CVE-2009-0758?
To fix CVE-2009-0758, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2009-0758 being actively exploited in the wild?
It is possible that CVE-2009-0758 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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