CVE-2009-3641Snort Vulnerability
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.
Published Oct 28, 2009 · Updated Aug 7, 2024
Key Facts
Routine patching- CVE-2009-3641 is a medium-severity vulnerability (CVSS 4.3 v2) affecting Snort.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 39% probability of exploitation in the next 30 days.
- Fixed versions are available, including Snort 2.8.3.5.
- Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
Scores
CVSS v2
4.3
AV:N/AC:M/Au:N/C:N/I:N/A:P
EPSS (30-day exploit likelihood)
39%
Higher than 98.5% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
42/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
2
Proof-of-concept links
In-the-wild evidence
1
Reports of active use
Advisories And Exploit References
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
26 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| SnortSnort | 1.6, 1.8.0, 1.8.1, 1.8.2, 1.8.3, 1.8.4, 1.8.5, 1.8.6 | 2.8.3.5 |
Patched Releases
Snort
2.8.3.5
Timeline
Publicly disclosed
Oct 28, 2009
Last updated
Aug 7, 2024
References
- advisorysecurity-tracker.debian.org · CVE-2009-3641
- advisorydl.snort.org · release_notes_2851.txt
- advisory37135
- advisoryADV-2009-3014
- patch20091022 Snort <= 2.8.5 IPV6 Remote DoS
FAQ
Common Questions.
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: Snort versions 1.6, 1.8.0, 1.8.1, 1.8.2, 1.8.3, 1.8.4, 1.8.5, 1.8.6. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Snort 2.8.3.5.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
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