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Vulnerability Details :

CVE-2002-0518

Summary
Assigner-mitre
Assigner Org ID-8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At-11 Jun, 2002 | 04:00
Updated At-08 Aug, 2024 | 02:49
Rejected At-
Credits

The SYN cache (syncache) and SYN cookie (syncookie) mechanism in FreeBSD 4.5 and earlier allows remote attackers to cause a denial of service (crash) (1) via a SYN packet that is accepted using syncookies that causes a null pointer to be referenced for the socket's TCP options, or (2) by killing and restarting a process that listens on the same socket, which does not properly clear the old inpcb pointer on restart.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:mitre
Assigner Org ID:8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At:11 Jun, 2002 | 04:00
Updated At:08 Aug, 2024 | 02:49
Rejected At:
▼CVE Numbering Authority (CNA)

The SYN cache (syncache) and SYN cookie (syncookie) mechanism in FreeBSD 4.5 and earlier allows remote attackers to cause a denial of service (crash) (1) via a SYN packet that is accepted using syncookies that causes a null pointer to be referenced for the socket's TCP options, or (2) by killing and restarting a process that listens on the same socket, which does not properly clear the old inpcb pointer on restart.

Affected Products
Vendor
n/a
Product
n/a
Versions
Affected
  • n/a
Problem Types
TypeCWE IDDescription
textN/An/a
Type: text
CWE ID: N/A
Description: n/a
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:20.syncache.asc
vendor-advisory
x_refsource_FREEBSD
http://www.osvdb.org/6046
vdb-entry
x_refsource_OSVDB
http://www.iss.net/security_center/static/8873.php
vdb-entry
x_refsource_XF
http://www.iss.net/security_center/static/8875.php
vdb-entry
x_refsource_XF
http://www.securityfocus.com/bid/4524
vdb-entry
x_refsource_BID
Hyperlink: ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:20.syncache.asc
Resource:
vendor-advisory
x_refsource_FREEBSD
Hyperlink: http://www.osvdb.org/6046
Resource:
vdb-entry
x_refsource_OSVDB
Hyperlink: http://www.iss.net/security_center/static/8873.php
Resource:
vdb-entry
x_refsource_XF
Hyperlink: http://www.iss.net/security_center/static/8875.php
Resource:
vdb-entry
x_refsource_XF
Hyperlink: http://www.securityfocus.com/bid/4524
Resource:
vdb-entry
x_refsource_BID
▼Authorized Data Publishers (ADP)
CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:20.syncache.asc
vendor-advisory
x_refsource_FREEBSD
x_transferred
http://www.osvdb.org/6046
vdb-entry
x_refsource_OSVDB
x_transferred
http://www.iss.net/security_center/static/8873.php
vdb-entry
x_refsource_XF
x_transferred
http://www.iss.net/security_center/static/8875.php
vdb-entry
x_refsource_XF
x_transferred
http://www.securityfocus.com/bid/4524
vdb-entry
x_refsource_BID
x_transferred
Hyperlink: ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:20.syncache.asc
Resource:
vendor-advisory
x_refsource_FREEBSD
x_transferred
Hyperlink: http://www.osvdb.org/6046
Resource:
vdb-entry
x_refsource_OSVDB
x_transferred
Hyperlink: http://www.iss.net/security_center/static/8873.php
Resource:
vdb-entry
x_refsource_XF
x_transferred
Hyperlink: http://www.iss.net/security_center/static/8875.php
Resource:
vdb-entry
x_refsource_XF
x_transferred
Hyperlink: http://www.securityfocus.com/bid/4524
Resource:
vdb-entry
x_refsource_BID
x_transferred
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:cve@mitre.org
Published At:12 Aug, 2002 | 04:00
Updated At:03 Apr, 2025 | 01:03

The SYN cache (syncache) and SYN cookie (syncookie) mechanism in FreeBSD 4.5 and earlier allows remote attackers to cause a denial of service (crash) (1) via a SYN packet that is accepted using syncookies that causes a null pointer to be referenced for the socket's TCP options, or (2) by killing and restarting a process that listens on the same socket, which does not properly clear the old inpcb pointer on restart.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary2.05.0MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
Type: Primary
Version: 2.0
Base score: 5.0
Base severity: MEDIUM
Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:P
CPE Matches
FreeBSD Foundation
freebsd
>>freebsd>>4.5
cpe:2.3:o:freebsd:freebsd:4.5:release:*:*:*:*:*:*
FreeBSD Foundation
freebsd
>>freebsd>>4.5
cpe:2.3:o:freebsd:freebsd:4.5:stable:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
NVD-CWE-OtherPrimarynvd@nist.gov
CWE ID: NVD-CWE-Other
Type: Primary
Source: nvd@nist.gov
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:20.syncache.asccve@mitre.org
N/A
http://www.iss.net/security_center/static/8873.phpcve@mitre.org
N/A
http://www.iss.net/security_center/static/8875.phpcve@mitre.org
Patch
Vendor Advisory
http://www.osvdb.org/6046cve@mitre.org
N/A
http://www.securityfocus.com/bid/4524cve@mitre.org
Patch
Vendor Advisory
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:20.syncache.ascaf854a3a-2127-422b-91ae-364da2661108
N/A
http://www.iss.net/security_center/static/8873.phpaf854a3a-2127-422b-91ae-364da2661108
N/A
http://www.iss.net/security_center/static/8875.phpaf854a3a-2127-422b-91ae-364da2661108
Patch
Vendor Advisory
http://www.osvdb.org/6046af854a3a-2127-422b-91ae-364da2661108
N/A
http://www.securityfocus.com/bid/4524af854a3a-2127-422b-91ae-364da2661108
Patch
Vendor Advisory
Hyperlink: ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:20.syncache.asc
Source: cve@mitre.org
Resource: N/A
Hyperlink: http://www.iss.net/security_center/static/8873.php
Source: cve@mitre.org
Resource: N/A
Hyperlink: http://www.iss.net/security_center/static/8875.php
Source: cve@mitre.org
Resource:
Patch
Vendor Advisory
Hyperlink: http://www.osvdb.org/6046
Source: cve@mitre.org
Resource: N/A
Hyperlink: http://www.securityfocus.com/bid/4524
Source: cve@mitre.org
Resource:
Patch
Vendor Advisory
Hyperlink: ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:20.syncache.asc
Source: af854a3a-2127-422b-91ae-364da2661108
Resource: N/A
Hyperlink: http://www.iss.net/security_center/static/8873.php
Source: af854a3a-2127-422b-91ae-364da2661108
Resource: N/A
Hyperlink: http://www.iss.net/security_center/static/8875.php
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Patch
Vendor Advisory
Hyperlink: http://www.osvdb.org/6046
Source: af854a3a-2127-422b-91ae-364da2661108
Resource: N/A
Hyperlink: http://www.securityfocus.com/bid/4524
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Patch
Vendor Advisory

Change History

0
Information is not available yet

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