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FreeBSD TCP Stack Implementation Vulnerabilities
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Secunia Advisory:
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SA15867
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Release Date:
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2005-06-30
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Critical:
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Less critical
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Impact:
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DoS
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| OS: | FreeBSD 4.x
FreeBSD 5.x
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| | CVE reference: | CVE-2005-0356 (Secunia mirror)
CVE-2005-2068 (Secunia mirror)
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Description:
FreeBSD has issued an update for the TCP stack. This fixes a vulnerability, which can be exploited by malicious people to cause a DoS (Denial of Service) on active TCP sessions.
For more information:
SA15393
Additionally, an error has also been fixed, which causes TCP SYN packets to be accepted for established connections making it possible to overwrite certain TCP options.
Solution:
Update FreeBSD or apply patch.
Fixed versions:
2005-06-29 21:38:48 UTC (RELENG_5, 5.4-STABLE)
2005-06-29 21:41:03 UTC (RELENG_5_4, 5.4-RELEASE-p3)
2005-06-29 21:42:33 UTC (RELENG_5_3, 5.3-RELEASE-p17)
2005-06-29 21:43:42 UTC (RELENG_4, 4.11-STABLE)
2005-06-29 21:45:14 UTC (RELENG_4_11, 4.11-RELEASE-p11)
2005-06-29 21:46:15 UTC (RELENG_4_10, 4.10-RELEASE-p16)
Patch for FreeBSD 4.x:
ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-05:15/tcp4.patch
ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-05:15/tcp4.patch.asc
Patch for FreeBSD 5.x:
ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-05:15/tcp.patch
ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-05:15/tcp.patch.asc
Original Advisory:
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-05:15.tcp.asc
Other References:
SA15393:
http://secunia.com/advisories/15393/
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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