CVE-2018-6922 (GCVE-0-2018-6922)
Vulnerability from cvelistv5 – Published: 2018-08-09 18:00 – Updated: 2024-09-16 17:53
VLAI?
Summary
One of the data structures that holds TCP segments in all versions of FreeBSD prior to 11.2-RELEASE-p1, 11.1-RELEASE-p12, and 10.4-RELEASE-p10 uses an inefficient algorithm to reassemble the data. This causes the CPU time spent on segment processing to grow linearly with the number of segments in the reassembly queue. An attacker who has the ability to send TCP traffic to a victim system can degrade the victim system's network performance and/or consume excessive CPU by exploiting the inefficiency of TCP reassembly handling, with relatively small bandwidth cost.
Severity ?
No CVSS data available.
CWE
- CWE-400 - Uncontrolled Resource Consumption ('Resource Exhaustion')
Assigner
References
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Impacted products
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Party Advisory\",\"VDB Entry\"]},{\"url\":\"http://www.securitytracker.com/id/1041425\",\"source\":\"secteam@freebsd.org\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20180815-0002/\",\"source\":\"secteam@freebsd.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.freebsd.org/security/advisories/FreeBSD-SA-18:08.tcp.asc\",\"source\":\"secteam@freebsd.org\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html\",\"source\":\"secteam@freebsd.org\",\"tags\":[\"Patch\"]},{\"url\":\"http://www.securityfocus.com/bid/105058\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"http://www.securitytracker.com/id/1041425\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20180815-0002/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.freebsd.org/security/advisories/FreeBSD-SA-18:08.tcp.asc\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}"
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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