CVE-2004-0171
CVE-2004-0171 is a medium-severity vulnerability in Freebsd with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Medium (CVSS 2.0 base score 5.0)
- EPSS exploit prediction: 3% (86th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Freebsd
- Published:
- Last modified:
Description
FreeBSD 5.1 and earlier, and Mac OS X before 10.3.4, allows remote attackers to cause a denial of service (resource exhaustion of memory buffers and system crash) via a large number of out-of-sequence TCP packets, which prevents the operating system from creating new connections.
Frequently asked questions
- What is CVE-2004-0171?
- FreeBSD 5.1 and earlier, and Mac OS X before 10.3.4, allows remote attackers to cause a denial of service (resource exhaustion of memory buffers and system crash) via a large number of out-of-sequence TCP packets, which prevents the operating system from creating new connections.
- How severe is CVE-2004-0171?
- CVE-2004-0171 has a CVSS 2.0 base score of 5.0, rated medium severity.
- Is CVE-2004-0171 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2004-0171?
- CVE-2004-0171 primarily affects Freebsd. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2004-0171?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2004-0171 published?
- CVE-2004-0171 was published on 2004-03-15 and last updated on 2026-06-16.
References
- ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-04:04.tcp.asc
- http://lists.seifried.org/pipermail/security/2004-May/003743.html
- http://www.idefense.com/application/poi/display?id=78&type=vulnerabilities
- http://www.kb.cert.org/vuls/id/395670
- http://www.osvdb.org/4124
- http://www.securityfocus.com/bid/9792
- https://exchange.xforce.ibmcloud.com/vulnerabilities/15369
Affected products (9)
- cpe:2.3:o:freebsd:freebsd:4.6.2:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:4.7:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:4.8:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:4.9:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:5.0:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:5.1:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:5.2:*:*:*:*:*:*:*
- cpe:2.3:o:openbsd:openbsd:3.3:*:*:*:*:*:*:*
- cpe:2.3:o:openbsd:openbsd:3.4:*:*:*:*:*:*:*
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