CVE-2009-3641

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 38.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2009-10-28 · updated 2026-06-16

Description

Snort before 2.8.5.1, when the -v option is enabled, allows remote attackers to cause a denial of service (application crash) via a crafted IPv6 packet that uses the (1) TCP or (2) ICMP protocol.

Affected products

Snort: through 2.8.3.5; 1.6, 1.8.0, 1.8.1, 1.8.2, 1.8.3, 1.8.4 (+19)

References

http://dl.snort.org/snort-current/release_notes_2851.txt
http://marc.info/?l=oss-security&m=125649553414700&w=2
http://seclists.org/fulldisclosure/2009/Oct/299
http://secunia.com/advisories/37135
http://securitytracker.com/id?1023076
http://vrt-sourcefire.blogspot.com/2009/10/snort-2851-release.html
http://www.openwall.com/lists/oss-security/2009/10/25/5
http://www.osvdb.org/59159
http://www.securityfocus.com/bid/36795
http://www.vupen.com/english/advisories/2009/3014
https://bugzilla.redhat.com/show_bug.cgi?id=530863
https://exchange.xforce.ibmcloud.com/vulnerabilities/53912

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